Tests done on a 2.9 Ghz Athlon 64 with 128 meg hash and all 3,4,5 and selected 6 piece tablebases. 32meg egtb hash
3+2 Nunn 20 game suite tournament
1 2 3
1 Rybka 2.2 32-bit *** 13.0 - 7.0 14.0 - 6.0 27.0/40
2 Fritz 10 7.0 - 13.0 ** 14.5 - 5.5 21.5/40
3 Fritz 9 6.0 - 14.0 5.5 - 14.5 ** 11.5/40
Fritz 10 has improved quite a bit at least in blitz, but it is still not as good as Rybka. I will add more engines later hopefully.
3 + 2 Nunn 60 game test
1 Fritz 10 35.5/60
2 Deep Shredder 10 UCI 24.5/60