I mainly play SF4 and SFxT, probably because they're the "main" things these days. On the side, I play SF2HDR, SF3, Jojo's Bizarre Adventure and Marvel vs Capcom 3. And more casually, MK and DoA5. Funny, though, the game that I almost always go back to when I just feel like unwinding is Marvel Super Heroes (probably among my top 3 most favorite fighting games ever).
Interestingly enough, my brother and I are flying to Las Vegas for EVO this year. We're not expecting to do particularly well or anything, but it's one of those events that I decided that I needed to experience once in my life. And preferably before kids come along. Which means NOW.
So both EVO and TFCon this July. I'm practically not going into work that month entirely.