Besides Soul Calibur IV...
Extremely light amounts of Street Fighter IV. I'll be jumping into Blazblue and Tekken 6 when they release along with SC4, most likely will drop SF4 unless I find new reason to play it. New on my list, and seeming from NOWHERE, MvC2, which I will play EXCLUSIVELY on Xbox Live, basically just for all the hate mail and trash talk messages that are to come with it.
Edit: as for oddball stuff, I do play TMNT Tournament Fighters on the SNES and on rare occasion, SSBM and KoF98UM(trying to learn it).