I know this make me look even more like an uber nerd and a loser ( not that I need help). I am going to keep it simple with a breif description of why he/she is my favorite.
Deadpool hands down. Guy has had a shit life, made it in the military then contracted cancer while in the Weapon X project with Wolverine. They tried to counter act the cancer by injecting him with Wolverines mutant healing factor and the healing factor thought the cancer was a normal part of his body leaving his skin scarred and mishapen but he heals faster than Wolverine due to the cancer. Has multiple voices in his that he argues with and is just flat out hilarious, especially when he talks to them outloud. Despite his crap life he is one of THE most dangerous characters to ever walk the Marvel Universe.
http://img.photobucket.com/albums/v226/Schmuckingham/detail.jpg
http://img.photobucket.com/albums/v226/Schmuckingham/deadpool-11.jpg
http://img.photobucket.com/albums/v226/Schmuckingham/119133-6000-109330-1-deadpool_super.jpg
http://img.photobucket.com/albums/v226/Schmuckingham/Deadpool_cover_colored_by_skage.jpg