I actually beat DX2:IW a couple of weeks ago (and saved appropriately so I could see all four endings). Yay for me!
I have to say that while I really enjoyed the game (but not as much as the first one), the endings (all of them) left a lot to be desired.
BTW, I'm not even going to list back-burner games, b/c I switch between so many, so often. One thing though, I'm kinda pissed b/c I went back to finish Splinter Cell since the new one's gonna be out any day now (I think). I was a good three-quarters done, only to find out that /somehow/ my game had got eaten or something.
Bother! I've redone the first level, and I guess I'm gonna try and sally-forth or something.