source: http://www.thehistoryofwwe.com/ecw97.htm
(Includes ECW events and the Terry Funk "retirement" show with ECW stars)

100 or more matches

D-Von Dudley: 103 matches = 1-16-0 (singles), 40-46-0 (tag)… 39% winning
Spike Dudley: 100 matches = 16-39-0 (singles), 21-23-1 (tag)… 37% winning

75 or more matches

Balls Mahoney: 95 matches = 15-34-1 (singles), 8-36-1 (tag)… 24% winning
Tommy Dreamer: 92 matches = 25-18-6 (singles), 28-14-1 (tag)… 62% winning
Little Guido: 88 matches = 14-13-0 (singles), 28-32-1 (tag)… 48% winning
John Kronus: 88 matches = 11-6-0 (singles), 54-17-0 (tag)… 73% winning
Buh Buh Ray Dudley: 88 matches = 6-8-2 (singles), 38-34-0 (tag)… 51% winning
Chris Chetti: 85 matches = 10-51-1 (singles), 8-14-1 (tag)… 21% winning
Axl Rotten: 84 matches = 23-12-0 (singles), 11-37-1 (tag)… 40% winning
Shane Douglas: 83 matches = 36-15-0 (singles), 13-19-0 (tag)… 59% winning
Sabu: 83 matches = 32-5-7 (singles), 18-19-2 (tag)… 67% winning
Chris Candido: 83 matches = 31-18-1 (singles), 22-11-0 (tag)… 64% winning
Rob Van Dam: 81 matches = 22-13-6 (singles), 18-20-2 (tag)… 54% winning
Taz: 77 matches = 57-1-8 (singles), 8-3-0 (tag)… 94% winning

50 or more matches

Tracy Smothers: 71 matches = 3-11-0 (singles), 26-30-1 (tag)… 41% winning
the Sandman: 64 matches = 21-15-5 (singles), 9-13-1 (tag)… 51% winning
New Jack: 58 matches = 4-0-0 (singles), 26-28-0 (tag)… 51% winning
Mikey Whipwreck: 56 matches = 13-15-0 (singles), 14-14-0 (tag)… 48% winning
Pitbull #2: 52 matches = 6-9-4 (singles), 17-15-1 (tag)… 48% winning

25 or more matches

Perry Saturn: 46 matches = 0-0-0 (singles), 37-9-0 (tag)… 80% winning
Bam Bam Bigelow: 44 matches = 29-2-0 (singles), 10-3-0 (tag)… 88% winning
Raven: 44 matches = 20-11-1 (singles), 2-10-0 (tag)… 51% winning
Louie Spicolli: 43 matches = 11-24-1 (singles), 2-5-0 (tag)… 30% winning
Pitbull #1: 37 matches = 1-7-0 (singles), 14-14-1 (tag)… 41% winning
Stevie Richards: 34 matches = 13-15-0 (singles), 2-4-0 (tag)… 44% winning
Justin Credible: 33 matches = 24-7-0 (singles), 1-1-0 (tag)… 75% winning
Al Snow: 30 matches = 11-15-0 (singles), 2-2-0 (tag)… 43% winning
Terry Funk: 27 matches = 17-4-0 (singles), 4-2-0 (tag)… 77% winning
Jerry Lynn: 26 matches = 4-13-0 (singles), 4-5-0 (tag)… 30% winning

10 or more matches
Paul Diamond: 24 matches = 7-13-0 (singles), 0-4-0 (tag)… 29% winning
Nova: 23 matches = 3-13-1 (singles), 2-3-1 (tag)… 23% winning
Mustafa: 23 matches = 0-0-0 (singles), 6-17-0 (tag)… 26% winning
Brian Lee: 22 matches = 4-3-2 (singles), 2-11-0 (tag)… 30% winning
Wolfie D: 21 matches = 0-4-0 (singles), 4-13-0 (tag)… 19% winning
Lance Storm: 20 matches = 3-8-0 (singles), 7-2-0 (tag)… 50% winning
Roadkill: 19 matches = 0-12-0 (singles), 1-6-0 (tag)… 5% winning
Bobby Duncum Jr.: 17 matches = 4-10-0 (singles), 1-2-0 (tag)… 29% winning
JC Ice: 17 matches = 0-0-0 (singles), 4-13-0 (tag)… 23% winning
Big Dick Dudley: 16 matches = 1-1-0 (singles), 4-10-0 (tag)… 31% winning
Danny Morrison: 14 matches = 1-7-1 (singles), 0-5-0 (tag)… 7% winning
Phil Lafon: 14 matches = 0-1-0 (singles), 8-5-0 (tag)… 57% winning
The Blue Meanie: 13 matches = 6-0-0 (singles), 3-3-1 (tag)… 75% winning
Jason Knight: 13 matches = 3-8-0 (singles), 1-1-0 (tag)… 30% winning
Doug Furnas: 13 matches = 0-0-0 (singles), 8-5-0 (tag)… 61% winning
Cpl. Punishment: 13 matches = 0-11-0 (singles), 1-1-0 (tag)… 7% winning
Tommy Rogers: 12 matches = 3-2-0 (singles), 4-3-0 (tag)… 58% winning
Tommy Rich: 11 matches = 3-2-0 (singles), 2-4-0 (tag)… 45% winning
Bill Wiles: 10 matches = 0-7-1 (singles), 0-2-0 (tag)… 0% winning

5 or more matches

Beulah McGillicutty: 8 matches = 2-0-0 (singles), 5-1-0 (tag)… 87% winning
The Great Sasuke: 8 matches = 4-1-0 (singles), 2-1-0 (tag)… 75% winning
Bad Crew #1: 5 matches = 0-0-0 (singles), 0-5-0 (tag)… 0% winning
Bad Crew #2: 5 matches = 0-0-0 (singles), 0-5-0 (tag)… 0% winning
Francine: 5 matches = 0-0-0 (singles), 1-4-0 (tag)… 20% winning

Several Matches

Steve Williams: 4 matches = 3-1-0 (singles), 0-0-0 (tag)… 75% winning
Bud Liscious: 4 matches = 0-3-0 (singles), 0-1-0 (tag)… 0% winning
Erin O'Grady: 4 matches = 0-3-0 (singles), 0-1-0 (tag)… 0% winning
Lou Marconi: 4 matches = 0-3-0 (singles), 0-1-0 (tag)… 0% winning
Prodigy: 4 matches = 0-4-0 (singles), 0-0-0 (tag)… 0% winning
Wing Kanemura: 3 matches = 3-0-0 (singles), 0-0-0 (tag)… 100% winning
Gran Hamada: 3 matches = 0-0-0 (singles), 2-1-0 (tag)… 66% winning
Mens Teioh: 3 matches = 0-0-0 (singles), 1-2-0 (tag)… 33% winning
Bill Alphonso: 3 matches = 0-2-0 (singles), 0-1-0 (tag)… 0% winning
Mike Awesome: 3 matches = 2-1-0 (singles), 0-0-0 (tag)… 66% winning
Gran Naniwa: 3 matches = 0-0-0 (singles), 2-1-0 (tag)… 66% winning
Cody Michaels: 3 matches = 0-3-0 (singles), 0-0-0 (tag)… 0% winning
Taka Michinoku: 3 matches = 0-0-0 (singles), 1-2-0 (tag)… 33% winning
Chris Van de Lay: 3 matches = 0-2-0 (singles), 0-1-0 (tag)… 0% winning
Barry Hardy: 3 matches = 0-2-0 (singles), 0-1-0 (tag)… 0% winning
Dick Togo: 3 matches = 0-0-0 (singles), 1-2-0 (tag)… 33% winning
Ricky Morton: 3 matches = 0-2-0 (singles), 0-1-0 (tag)… 0% winning
Jimmy Cicero: 2 matches = 0-2-0 (singles), 0-0-0 (tag)… 0% winning
Jimmy Shoulders: 2 matches = 0-0-0 (singles), 0-2-0 (tag)… 0% winning
an unknown: 2 matches = 0-2-0 (singles), 0-0-0 (tag)… 0% winning
Marty Barnett: 2 matches = 0-2-0 (singles), 0-0-0 (tag)… 0% winning
Tom Prichard: 2 matches = 1-1-0 (singles), 0-0-0 (tag)… 50% winning
Kevin Quinn: 2 matches = 0-2-0 (singles), 0-0-0 (tag)… 0% winning
Tiger Mask IV: 2 matches = 0-2-0 (singles), 0-0-0 (tag)… 0% winning
Gabriel: 2 matches = 0-0-0 (singles), 0-2-0 (tag)… 0% winning
Jerry Lawler: 2 matches = 0-1-0 (singles), 0-0-1 (tag)… 0% winning
Azrael: 2 matches = 0-0-0 (singles), 0-2-0 (tag)… 0% winning
Scott Taylor: 2 matches = 0-2-0 (singles), 0-0-0 (tag)… 0% winning
Dory Funk Jr.: 2 matches = 1-1-0 (singles), 0-0-0 (tag)… 50% winning

One Shot Stars

El Cholo #1: 1 matches = 0-0-0 (singles), 0-1-0 (tag)… 0% winning
Lenny Lane: 1 matches = 0-1-0 (singles), 0-0-0 (tag)… 0% winning
Pablo Marquez: 1 matches = 0-1-0 (singles), 0-0-0 (tag)… 0% winning
Adam Flash: 1 matches = 0-1-0 (singles), 0-0-0 (tag)… 0% winning
Dave Morrison: 1 matches = 0-1-0 (singles), 0-0-0 (tag)… 0% winning
"the Hellraiser" Jason Helton: 1 matches = 0-1-0 (singles), 0-0-0 (tag)… 0% winning
Beef Wellington: 1 matches = 1-0-0 (singles), 0-0-0 (tag)… 100% winning
The Dirt Bike Kid: 1 matches = 1-0-0 (singles), 0-0-0 (tag)… 100% winning
JT Smith: 1 matches = 0-0-0 (singles), 1-0-0 (tag)… 100% winning
El Cholo #2: 1 matches = 0-0-0 (singles), 0-1-0 (tag)… 0% winning
the Vampire Warrior: 1 matches = 0-0-0 (singles), 0-1-0 (tag)… 0% winning
Hack Myers: 1 matches = 0-0-0 (singles), 0-1-0 (tag)… 0% winning
Rick Rude: 1 matches = 0-0-0 (singles), 0-0-1 (tag)… 0% winning
Puerto Rico: 1 matches = 1-0-0 (singles), 0-0-0 (tag)… 100% winning
Bret Hart: 1 matches = 1-0-0 (singles), 0-0-0 (tag)… 100% winning
Kid Kash: 1 matches = 0-1-0 (singles), 0-0-0 (tag)… 0% winning
Mick Foley: 1 matches = 1-0-0 (singles), 0-0-0 (tag)… 100% winning
Marty Jannetty: 1 matches = 0-0-0 (singles), 0-1-0 (tag)… 0% winning

Singles going Steady

Taz: 66 singles matches = 57-1-8 (singles)… 99% winning
Chris Chetti: 62 singles matches = 10-51-1 (singles)… 58% winning
Spike Dudley: 55 singles matches = 16-39-0 (singles)… 64% winning
Shane Douglas: 51 singles matches = 36-15-0 (singles)… 85% winning
Chris Candido: 50 singles matches = 31-18-1 (singles)… 81% winning
Balls Mahoney: 50 singles matches = 15-34-1 (singles)… 65% winning
Tommy Dreamer: 49 singles matches = 25-18-6 (singles)… 80% winning
Sabu: 44 singles matches = 32-5-7 (singles)… 93% winning
the Sandman: 41 singles matches = 21-15-5 (singles)… 80% winning
Rob Van Dam: 41 singles matches = 22-13-6 (singles)… 82% winning
Louie Spicolli: 36 singles matches = 11-24-1 (singles)… 66% winning
Axl Rotten: 35 singles matches = 23-12-0 (singles)… 82% winning
Raven: 32 singles matches = 20-11-1 (singles)… 82% winning
Bam Bam Bigelow: 31 singles matches = 29-2-0 (singles)… 96% winning
Justin Credible: 31 singles matches = 24-7-0 (singles)… 88% winning
Stevie Richards: 28 singles matches = 13-15-0 (singles)… 73% winning
Mikey Whipwreck: 28 singles matches = 13-15-0 (singles)… 73% winning
Little Guido: 27 singles matches = 14-13-0 (singles)… 75% winning
Al Snow: 26 singles matches = 11-15-0 (singles)… 71% winning
Terry Funk: 21 singles matches = 17-4-0 (singles)… 90% winning
Paul Diamond: 20 singles matches = 7-13-0 (singles)… 67% winning

1. Taz had one singles lost in 1997.

Wrestlepalooza 97 - Philadelphia, PA - ECW Arena - June 7, 1997 (1,250)
Hardcore TV - 6/12/97: Sabu (w/ Bill Alphonso) pinned Taz at 8:14 when Taz pinned himself as Sabu was caught in the Tazmission; after the bout, Taz kept the hold applied until several referees rushed the ring; moments later, Taz dropped several of the referees and locked two in the Tazmission; Taz then applied the hold on Alphonso; as Taz grabbed the mic and prepared to speak, he was cut off again by Shane Douglas in the crowd - alongside Francine, Chris Candido, and Tammy Sytch - who told him to get the fuck out of the ring because he was tired of seeing him; Taz then said if Douglas wanted him out of the ring he should come make him leave; Taz then guaranteed he would make Douglas tap within 5 minutes; Douglas agreed and said he would put the belt on the line but if Taz couldn't make him tap in 5 minutes he wouldn't be able to work in ECW for 30 days, with Taz pushing it to 60 days and said he could do it in 3 minutes

2. Sabu had five singles losses in 1997.

a) Elimination match (Douglas beat Sabu & Terry Funk) at Hardcore Heaven 97
b) Taz defeated Sabu via TKO at Barely Legal 97 ECW World Champion
c) Terry Funk pinned Sabu (ECW @ Warwick, PA - Twin Rinks - August 8, 1997 (1,100))
d) Mankind defeated Sabu (w/ Bill Alfonso) via disqualification at 8:30 after Alfonso interfered (Terry Funk's Wrestlefest - Amarillo, TX - Tri-State Fairgrounds Coliseum - September 11, 1997 (announced at 4,000))
e) ECW World Champion Bam Bam Bigelow defeated Sabu via disqualification (ECW @ Queens, NY - Elk's Lodge - November 20, 1997)

3. Bam Bam had two singles losses in 1997.

a. Hardcore TV - 8/14/97: Spike Dudley pinned Bam Bam Bigelow at 6:37
b. Shane Douglas (w/ Francine on crutches, recovering from a fractured pelvis) pinned ECW World Champion Bam Bam Bigelow to win the title at 25:01 with a belly to belly suplex through a table after avoiding a powerbomb off the top through the same table; both Chris Candido and Lance Storm were banned from ringside for the duration of the match but attempted to interfere at the 19:30 mark only for Bigelow to press slam the challenger onto them at ringside; Bigelow played the heel for the match since it was near Douglas' hometown of Pittsburgh; after the bout, Candido and Storm came to the ring to check on the condition of the new champion

4. Terry Funk had four singles losses in 1997.

a. Brian Lee pinned Terry Funk (House Party 97 - Philadelphia, PA - ECW Arena - January 11, 1997 (1,400))
b. Sabu pinned Terry Funk (Born to Be Wired - Philadelphia, PA - ECW Arena - August 9, 1997 (1,400))
c. WWF World Champion Bret Hart pinned Terry Funk in a non-title match at 25:07 by lifting his shoulder out of a back suplex into a bridge; this was deemed Funk's retirement match and he was awarded a ECW Lifetime World Championship belt by the ECW contingent before the bout (Terry Funk's Wrestlefest - Amarillo, TX - Tri-State Fairgrounds Coliseum - September 11, 1997 (announced at 4,000))
d. Shane Douglas defeated Sabu & Terry Funk in an elimination match (Hardcore Heaven 97 - Ft. Lauderdale, FL - War Memorial Auditorium - August 17, 1997 (1,950))

5. The Blue Meanie, New Jack and Wing Kanemura did not lose in 1997.

6. Beulah McGillicutty beat up Bill Alfonso in 1997.

Terrific Taggers

D-Von Dudley: 86 matches = 40-46-0 (tag)… 73% winning
Buh Buh Ray Dudley: 72 matches = 38-34-0 (tag)… 76% winning
John Kronus: 71 matches = 54-17-0 (tag)… 88% winning
Little Guido: 61 matches = 28-32-1 (tag)… 73% winning
Tracy Smothers: 57 matches = 26-30-1 (tag)… 73% winning
New Jack: 54 matches = 26-28-0 (tag)… 74% winning
Axl Rotten: 49 matches = 11-37-1 (tag)… 61% winning
Perry Saturn: 46 matches = 37-9-0 (tag)… 90% winning
Spike Dudley: 45 matches = 21-23-1 (tag)… 74% winning
Balls Mahoney: 45 matches = 8-36-1 (tag)… 59% winning
Tommy Dreamer: 43 matches = 28-14-1 (tag)… 83% winning
Rob Van Dam: 40 matches = 18-20-2 (tag)… 74% winning
Sabu: 39 matches = 18-19-2 (tag)… 75% winning
Pitbull #2: 33 matches = 17-15-1 (tag)… 76% winning
Chris Candido: 33 matches = 22-11-0 (tag)… 83% winning
Shane Douglas: 32 matches = 13-19-0 (tag)… 70% winning
Pitbull #1: 29 matches = 14-14-1 (tag)… 75% winning
Mikey Whipwreck: 28 matches = 14-14-0 (tag)… 75% winning
the Sandman: 23 matches = 9-13-1 (tag)… 71% winning
Mustafa: 23 matches = 6-17-0 (tag)… 63% winning
Chris Chetti: 23 matches = 8-14-1 (tag)… 68% winning

1. Eliminators (John Kronus / Perry Saturn)

Kronus wrestled a lot more in 1997 ECW than Perry Saturn did. New Jack filled as Kronus' partner.
Defeats came from the Dudleys (Buh Buh Ray & D-Von), Sabu & RVD, and Tracy Smothers & Little Guido.

Tommy Dreamer: 43 matches = 28-14-1 (tag)… 83% winning

Dreamer largely teamed with Sandman but also with Terry Funk & Beulah.

Chris Candido: 33 matches = 22-11-0 (tag)… 83% winning

Candido teamed with lots of people - some of his defeats had partners such as Brian Lee, Shane Douglas, Lance Storm, Taz, Raven and Bam Bam Bigelow.

Bam Bam Bigelow: 13 matches = 10-3-0 (tag)… 88% winning

Sabu & RVD had Bam Bam & Douglas' number on two occasions. However, it was Taz/Dreamer/Balls who bested Bigelow/Douglas/Candido on a warm August night in Warwick PA.

Other notes

I was surprised to see D-Von Dudley had the most appearances of anyone followed closely by Spike, Balls Mahoney and Tommy Dreamer.

In the "really, that match happened?" category there was:

ECW @ Orlando, FL - Fairgrounds - September 27, 1997 (1,140)
Al Snow & Roadkill defeated Marty Jannetty & the Vampire Warrior (w/ Luna Vachon)

Four guys that played around on WWE TV and developmental years later, though I don't know if they all were ever there at exactly the same time.

I believe that 1997 was the year Rick Rude pulled off appearances in all three federations with just a few months! Some of his apperances included:

ECW @ Scranton, PA - CYC - January 18, 1997 (1,500)
Brian Lee fought Pitbull #2 to a no contest when the Triple Threat, Tommy Dreamer, Pitbull #1, Rick Rude, and Mike Awesome interfered

ECW @ Buffalo, NY - Flickinger Center - May 17, 1997 (1,697)
ECW - 5/22/97: Taz defeated Spike Dudley via submission with the Tazmission at 5:30; Rick Rude did guest commentary for the bout alongside Joey Styles

ECW @ Buffalo, NY - Flickinger Center - May 17, 1997 (1,697)
ECW - 5/22/97: ECW TV Champion Shane Douglas pinned Chris Chetti at 13:10 with the belly to belly suplex after avoiding a springboard moonsault; Rick Rude came out at the 11-minute mark, pulled up Francine's dress to reveal her panties, and then carried her backstage in a very suggestive piledriver position, leaving Douglas by himself

Heatwave 97 - Philadelphia, PA - ECW Arena - July 19, 1997 (1,500)
Hardcore TV - 7/24/97: Tommy Dreamer, the Sandman, & Rick Rude fought Rob Van Dam, Sabu, & Jerry Lawler to a no contest

Hardcore Heaven 97 - Ft. Lauderdale, FL - War Memorial Auditorium - August 17, 1997 (1,950)
Tommy Dreamer pinned Jerry Lawler at 18:57 after interference from Rick Rude, Jake Roberts, Beulah McGillicutty, and Tammy Sytch

As Good As it Gets - Philadelphia, PA - ECW Arena - September 20, 1997 (1,600)
ECW World Champion Shane Douglas (w/ Francine) pinned Phil Lafon (w/ Doug Furnas) (mystery opponent) at 12:03 with a roll over; prior to the match, Douglas cut an in-ring promo on Terry Funk and Shawn Michaels as well as mentioning Rick Rude couldn't be at the show because he was in London, England that weekend with the WWF; Douglas then asked who Rude had spent three months training to face him, with Furnas & Lafon appearing; after Douglas said he wanted to face Furnas - since Furnas' shoulder was recently injured in a car wreck - Furnas then took the mic and said he and Lafon were in the ring with the biggest pussy in the business - and it wasn't Francine; late in the match, Furnas, Chris Candido, Francine, and Bam Bam Bigelow all interfered, with Douglas and Candido having to hold Bigelow back from going after Furnas following the contest

ECW @ Queens, NY - Elk's Lodge - October 16, 1997 (900)
Hardcore TV - 10/24/97: Bam Bam Bigelow (w/ Rick Rude) pinned ECW World Champion Shane Douglas (w/ Francine & Chris Candido) in an impromptu match to win the title at 6:50 with a powerbomb; prior to the bout, Candido and Tammy Sytch came out to try to talk Bigelow out of the match but he shoved them away; after the bout, Rude celebrated with Bigelow in the ring

Guys that couldn't buy a bucket!

Roadkill: 19 matches = 0-12-0 (singles), 1-6-0 (tag)
Danny Morrison: 14 matches = 1-7-1 (singles), 0-5-0 (tag)
Cpl. Punishment: 13 matches = 0-11-0 (singles), 1-1-0 (tag)
Bill Wiles: 10 matches = 0-7-1 (singles), 0-2-0 (tag) (Even as the New Jersey Devil!)
Bad Crew: 5 matches = 0-0-0 (singles), 0-5-0 (tag)
Erin O'Grady: 4 matches = 0-3-0 (singles), 0-1-0 (tag) (Crash Holly)
Lou Marconi: 4 matches = 0-3-0 (singles), 0-1-0 (tag)
Prodigy: 4 matches = 0-4-0 (singles), 0-0-0 (tag)
Bud Liscious: 4 matches = 0-3-0 (singles), 0-1-0 (tag)
Bill Alphonso: 3 matches = 0-2-0 (singles), 0-1-0 (tag)
Cody Michaels: 3 matches = 0-3-0 (singles), 0-0-0 (tag) (April Hunter's boy!)
Barry Hardy: 3 matches = 0-2-0 (singles), 0-1-0 (tag) (Rochester's own!)
Ricky Morton: 3 matches = 0-2-0 (singles), 0-1-0 (tag)
Chris Van de Lay: 3 matches = 0-2-0 (singles), 0-1-0 (tag)
Jimmy Shoulders: 2 matches = 0-0-0 (singles), 0-2-0 (tag)
Azrael: 2 matches = 0-0-0 (singles), 0-2-0 (tag)
Marty Barnett: 2 matches = 0-2-0 (singles), 0-0-0 (tag)
an unknown: 2 matches = 0-2-0 (singles), 0-0-0 (tag)
Tiger Mask IV: 2 matches = 0-2-0 (singles), 0-0-0 (tag) (Sasuke's opponent)
Jimmy Cicero: 2 matches = 0-2-0 (singles), 0-0-0 (tag)
Gabriel: 2 matches = 0-0-0 (singles), 0-2-0 (tag)
Kevin Quinn: 2 matches = 0-2-0 (singles), 0-0-0 (tag)
Jerry Lawler: 2 matches = 0-1-0 (singles), 0-0-1 (tag)
Scott Taylor: 2 matches = 0-2-0 (singles), 0-0-0 (tag) (Not too Hotty!)