I grew up on 2. I love that game. One is a classic and three was ok.
Games I'm currently taking invites for:
Soul Calibur IV, Soul Calibur V, Tekken 6, Super Street Fighter IV, MvC3, Puzzle Quest, Halo: Reach, Madden 10, Left 4 Dead 2, Borderlands, Gears of War 3,, Modern Warfare 3, Rock Band, MvC2, Battlefield 1943, Castle Crashers