I never really liked any of the games back then (which is what brought me into making games). We used to play Street Fighter, but everyone knows SF is unfair.
Disclaimer: Any sarcasm in my posts will not be mentioned as that would ruin the purpose. It is assumed that the reader is intelligent enough to tell the difference between what is sarcasm and what is not.
Sonic 2 (mega drive)
Streets Of Rage II (mega drive)
Gran Turismo 2 (psone)
Zelda: OoT (n64)
FF7 (psone)
Halo 2 (xbox)
I don't really have one game in particular, though I probably spent the most time playing Sonic 2, Zelda and FF7 - because you couldn't save game in Sonic, and the others where really big games Though I did also seem to play Gran Turismo 2 for like 2.5 years solid...
DooM, DooM II, Duke Nukem 3D, Blood, Leisure Suit Larry 1,6 and 7, Daggerfall, Betrayal At Krondor, One Must Fall 2097, 4D Boxing, Red Baron, Dreamweb.
All of them DOS, I never had my own console.
Discarded pizza boxes are an indispensable source of cheese.