Quote:
SNES - It's a matter of personal preference between DreamSNES 0.9.8 and Super Famicast v2. You can get SBI's of both over at Sbiffy!com and put them both on the same disc.
NES - Nester, hands down. If you use the SBI version, I recommend using version 6.0. You can, however, put both v6.0 and v7.1 on the same disc with SBInducer. If you want to try out the light gun, you'll have to use 7.1+
GB - Everybody seems to say that DCgnuboy is the best GB/GBC emu. I've heard one or two say that boob!boy is almost as good, but I've never actually tried boob!boy, myself.
Genesis - right now, GenPlus preview 3 is the best Gen emu we have. The SBI file for that is called Genplus3_bO.sbi
Master System - SMSPlus and SMEG are both very nice emus
stolen from an old post by curt_grymala