ChaunceyK: I'm not a comic fan, but there was one graphic novel whose story made me want to read it...and I loved it.
The Red Son.
Its a re-telling of Superman, but instead of landing & growing up in the US, he lands & lives in the USSR. A very interesting twist. Highly recommended!
Oooh, Elseworlds stories, I forgot about them. I need to add three of my favorites to my earlier recommendations:
Batman: Gotham By Gaslight - Basically the book that started the whole Elseworlds line. What if Batman was a Victorian era superhero and Jack the Ripper paid a visit to Gotham City?
[url=http://en.wikipedia.org/wiki/Superman:_Speeding_Bullets]Superman: Speeding Bullets[/url] - Baby Kal-El is sent to Earth from his native Krypton and he is discovered by... Thomas and Martha Wayne. They raise him as their son Bruce until the fateful day when a mugger shoots them in a Gotham alley. You know what happens next, except this time, Batman can fly... and he's bullet-proof... and has heat vision.
Kingdom Come - You can't mention Elseworlds and not mention the penultimate Elseworlds story, Kingdom Come. Its the future of the DC Universe and the "old" superheroes have given rise to a new generation of violent vigilantes. When the new "heroes" take things too far, its up to the old generation to come back to try to set things right and prevent an apocalypse. A compelling story and beautiful painted artwork by Alex Ross; one of the finest examples of comics as an art form (IMO, of course).