I used to be indecisive, but now i'm not sure.
I generally enjoy just about any genre as long as the Story/Action/Humor is executed well.
Even with that being said if the art work is teribad then I'll give it a miss.
My favorite graphic novels and comic books that I own include: The Goon, Watchmen, The Dark Knight Returns, Kick Ass, Kingdom Come, The Killing Joke, The Walking Dead and Hellboy: Seed of Destruction.
I am also receiving Sin City: The Hard goodbye and Robert Kirkman's Invincible for Christmas.
[Edited on 12.16.2012 10:45 PM PST]