i prefer COD4 on pc because we are able to LAN.
nothing beats having their own monitor, and being in a room with their friends having fun.
though the 360 can be the same, but the TV would be a hassle without the VGA cable.
I dont play Live much because of the move spammers, and when they are about to lose, they shut down their consoles or DC themselves.
i think the funnest one was GH.