I would buy a PS3 if I were to get a new system right now. It's not just the number of games, but the number of games you really, really care about. For example, I would like to be able to get Gears of War, but, I love MGS too much to get a 360. I love Motorstorm 2, Army of Two, and pretty much every other PS3 game I've played (aside from this stupid little game called "Overlord" or something like that, it was ok, but not great, at all.
I did like a lot of the 360 games I've seen/played, but not as many as the PS3.