Probably only racing games. Only racing game I really enjoyed was Lego Racers (well, haven't really played many since then), but I can seem to get that to run on Windows 7 (if someone knows how, please tell me). Besides that, MMO's.
I have more action games than I can count (ranging from Doom to Bulletstorm and Homefront), adventure (Uncharted 2), RPGs (tons of Final Fantasy's, Divinity II, The Witcher), some music games (Guitar Hero 1/2, Audiosurf, Beat Hazard), RTS (Age of Empires, World in Conflict), fighting (both Dissidia's, Super Smash Bros Melee [need to buy original again since I got another N64]), and even some (14) sport games (Tony Hawk 2x - Proving Ground, Skate 1/2/3/It, Shaun White Skateboarding).
So, yeah... I play pretty much everything.