Best multiplayer games???

What are some of the most heavily multiplayer based games?

M.A.G, Starhawk, any COD, BF3

Uncharted 3, Far Cry 3

My favourites would be Killzone 2, Starhawk, and maybe Twisted Metal.

Super Street Fighter IV: Arcade Edition 2012

If you're not playing this game in multiplayer, you're doing it wrong.

Call of Duty: Black Ops 2, Battlefield 3, FIFA.