Bits of
Persona 3 Portable here and there. Also
Ikkitousen Xross Impact (AKA 2D Dynasty Warriors with titties) on PSP as well. In the latter I want to get everyone unlocked, but you have to do a lot of grinding and clear all the story modes before you can unlock the first one. Takes longer than it should. They really did a nice job making it better than the original though. Better enemy variety, challenge, moves, the tag system, etc.
Fighting games:
SSF4: All the fucking time, it seems like. Back and forth on PS3 and 360. Yesterday I took place in a small 16-man online tourney. They got it done within less than two hours. Meanwhile our Bore tourney is dragging.
NeoGeo Battle Coliseum: It was dead today. Nobody on. I came back to it a few hours later, decided to try player matches this time, and got some idiot who would rage quit after he lost one character. He sent me some sarcastic message about expecting a response from me about his quitting early. Uh...okay. Rejoined once more and he did it again. It's odd since he's getting nothing out of doing this. I left player matches and went back to ranked and played some more. While the netcode really is good, if you play most people in other regions, it's shitty. And that's just about all who were on. Euro and Japanese players.

At the end (maybe an hour later) I went back to player matches and the rage quit guy was still sitting there by himself. Nobody ever plays player matches in this game.
BlazBlue Continuum Shift: J-Players have a tendency to kick the gaijin out of their player rooms, but I found one that was cool with it. It's not like the connection is a problem in this game anyway. I beat everyone in the room pretty easily and then wound up playing one on one with one of them for another hour or so. Definitely the most fun I've had with the game since getting it.