[JamesBenjamin]

I'm not a huge classic comics guy, though I do read a lot of modern stuff (mostly not super hero stuff) but I have stumbled across a few TPBs that are really interesting, drastically different takes on classic characters. So far I've found:

Superman: Red Son - where superman is raised in the USSR instead of the USA
Hulk: The End - where the hulk's immortality leads him on an introspective journey after we've all killed ourselves in a nuclear war
Batman: The Dark Knight Returns - Miller's classic retake on Batman (not as out there as the other two, but still drastic and really good)

So what other books (preferably collected as TPBs) would you guys recommend to someone new to the superhero genre that are truly interesting, drastic re-takes of characters that I can look into?