I agree. it's annoying when it's not that little of a difference, the one that comes to mind the most is always the Darkness, I was gobsmacked at how poor it was graphically on the PS3, especially as only a month earlier I declared it as one of the most beautiful games I'd seen. What's more disappointing is, it's one of the best games of the year and it would likely put some people off.
I remember JUMPURS complaining for one.
Anyway, this is going off topic. It's impossible to say, it's all hearsay, but it wouldn't surprise a lot of people if TOB was as bad as some reports say. You're gonna have to wait it out, or get it on the PC I'm afraid as you didn't get an Xbox360.