I'd say I'm arguably one of the biggest Fallout 3 fans on the site, and I played it extensively for both PS3 and 360 and I noticed very little difference between the two versions. Maybe a bit longer load times on the PS3 version but freezing/glitching wasn't an issue anymore than it was on 360.
Also Oblivion on PS3 was very playable, no problems there either. In fact the PS3 version was the first one I played, didn't own it on 360 till much later.
I haven't played New Vegas or Skyrim on PS3 though, so maybe those are worse on PS3, I've heard once you get far in PS3 Skyrim it becomes unplayable but I can't comment on that.







