Street Fighter and Marvel vs Capcom 3, unfortunately.
Ever since Evo2k11, I've been spending more and more of my free time playing these two games to death. Having friends over, playing these games all night, trying to recapture the same competitive spirit that a lot of top players have. I know I'll never achieve the same level of play as much of the very top-echelon of players, but one can dream right?
I really need to get back into playing my game, the month isn't quite over, so I have plenty of time for that.