I've been playing a lot of Dragon Quest IX on the DS. Love it, love it, love it. I don't really like JRPGs all that much, but for some reason, the DQ series hits a sweet spot for me.
And I've been playing a bit of COD:BLOPS, but honestly, I prefer playing bots over humans, since bots don't ever hurl racial epithets in prepubescent voices. If only the bot AI could handle all the game modes (come on, Timesplitters could!), this game would be perfect. I love splitscreen bot DM.
I've played a little KZ3 (which I can't make myself like half as much as I liked KZ2) and MAG, too, but I've been traveling a lot (got a wedding coming up in December, almost done forging the links for my ball and chain), so it's mostly been DQIX.