The slowdowns ain't that bad but yeah, back in 2008 multiplatforms were better on X360.
I don't regret having the PS3 version, though. The differences are minimal and the game itself is great. The only problem is that I'm two years too late to this party and people pw3n me all the time. Gotta train. :>
As for my ex - he's a great guy but his family is fucking up his mind. I don't blame him for it. Families can be really toxic and dangerous. Mothers and fathers can convince their children to make the worst life decisions by saying that it's for "the greater good"...