We play whatever strikes our fancy! I GM pretty much exclusively, but we don't have any particular game that we play more than any other; we usually stick with short campaigns (12-15 sessions is a long one for us; most are 2-5). Right now I'm running a Risus game inspired by One Piece for my wife and son. As for the whole group, we just wrapped up one of many sessions of Mutants & Masterminds. (If I had to pick one favorite game for our gang, M&M would be it!)

Next up will probably just be a couple of one-shots. Probably a horror game next, but I don't have a rule system in mind. I'll probably just grab one that's handy a couple of hours before the game starts and just wing it from there. I run my games like Roger Corman makes movies: I work fast, I'm not looking to win an Oscar, and I'm not afraid to go for the cheap thrills.