Fav' Computer Game (Multiplayer)?

Well it used to be Quake3 but after 2yrs of playing it I got fed up with it
For now i'm mostly playing Return To Castle Wolfenstein (mp)
 
C&C Red Alert 2 - Yuri's Revenge, was amazing online too, just the games took along time usually, unless you had the skill i used to have and could flatten most people in minutes :D
 
I never could really stand the insane abominable unclear uber anti aliasing of the N64. I really enjoyed playing Goldeneye multiplayer at school, but there was just so much colour and chaos in Perfect Dark it hurt my eyes trying to see the other players. Didn't enjoy it at all.

networked PC's are the way to go. =)