The 4x AA not means anything. Xenon will support better AA in any case, Rsx isn't suitable to have standard AA. And AA it isn't the right parameter to compare the better perfomance for the two platform. Better texture on ps3 imho I don't think there are only to justify the bad frame rate. It's how to say 4x AA on 360 there is only because better texture are impossible.
So let me get this right. Where hte360 is doing a better job than the ps3 it isn't important to compare , but where the ps3 is doing a better job it is ?
From what I can gather from all this
360s pluses
60fps most of the time
4x fsaa
Ps3 pluses
better textures in some places
some effects in some area's that are missing from the 360 are present in the ps3 verison.
As someone who has been in caves before in the xbox 360 verison i can clearly say that smoke is there on the top of some of the caves at least and I will try to povide a picture next time i'm in a cave.