It depends on what I'm in the mood for. Currently, I'm playing the crap out of Rainbow 6 Vegas for the 360. Personally, I liked it a whole lot better than Gears of War. Now I'm not saying GOW was a bad game, but I'm more of a tactical realistic shooter type of guy.
FFXII, I thought was fun. It took me a while to get used to the whole gambit system. But once you got the gist of it, the game plays like a dream. Fights move by quickly so it isn't tiring, and lvling up isn't so bad anymore. The story has got to be one of the best stories I've experienced in the FF series. However, I didn't like the traveling system in it. Just beware though, the game is LONG. I bought the game since released, and haven't beaten it yet due to time constraints. But I'm already clocking in about 60+ hours. But then again, some of the puzzles really stumped me. I suck at puzzles.