Myriad Pro (and any variants)
Arial
Calibri
Courier New
Times New Roman
Stencil
Forte
8514oem
Rosewood STD
System
Terminal
ADMU12
Algerian
Blackadder ITC
Chiller
Comic Sans
Curlz
Giddyup
Jokerman
Photoshop Large/Small
Any “Script” or Old English-like fonts; these can be very difficult for readers to read, so their acceptable uses are limited.