I have nothing but good memories of Bully (except for the protagonist who is a snotty little ass) but I haven't played it in a year or three. That being said I guess Vice City would be my favorite (at least until I play Bully again). I like GTA3 but Vice City seems far more polished. San Andreas is larger but Vice City doesn't bog you down with tutorials. Also, before Brutal Legend, I can't think of a better game for people who like driving at high speeds to Slayer, Ozzy and, Iron Maiden while using squishy organics as particularly loud speed-bumps.