Well, currently i only have time to game 2 nights a week, so i haven't played as much lately. The Wed night group is almost always dedicated to our own [soon-to-be-commercial] homebrews: Four Colors al Fresco, Dread, and Advanced Dimensional Green Ninja-Educational Preparatory Super-Elementary Fortress 555, whether playtesting them or writing them. The Sun night group does a series of miniseries. Currently Four Colors al Fresco, LUGTrek (nominally using the DS9 rulebook, but set in the Mirror Universe) before that, and Arcane Space (Ars Magica-based rules for SpellJammer universe) before that.
In the last few years, i've also played or run Torg, Paranoia, Star Wars (WEG), D&D3E, and probably a couple others that're slipping my mind at the moment. Burning Wheel is being strongly pushed for a friend's next campaign, so i'm hoping i can fit that into my schedule.
My games of choice are Ars Magica, Werewolf: the Apocalypse, Everway, Over the Edge, Castle Falkenstein, Sorcerer, Kult, and Underground, though i haven't played any of them recently, for a variety of [circumstancial] reasons (such as lack of others interested in the same). Perhaps ironically, given where i am, D20 System is pretty low on my list, and i can't stand D&D3[.5]E--if i'm gonna play D20 System, it'll be Arcana Unearthed-, Spycraft-, or M&MM-based, or at least reflect a setting i'm in love with (Farscape, B5, etc.).
I'm not even going to bother listing all the games i've played in the last 5 years, or all the games i've ever played, much less all the games i've read and want to play (hint: i just picked up ~2 shelf-feet of RPG books at Origins, including a dozen new systems, and that's the way my interests typcially drive my RPG purchases).