Splitting off a little from the Favorite Band thread, since there was a lively discussion of guitarists going on -- who's your favorite guitarist of all time? Don't even bother trying to argue who's "best." That way madness lies.
My all-time jaw-droppingly amazing guitar hero is Django Reinhardt, the hot jazz guitarist. Nobody, but nobody could play like that man. Wanna see for yourself? Check out this video. Note that he can only use two fingers of his fret hand. His pinky and ring finger were damaged in a fire, so he did everything with just his index and middle fingers. Amazing. To this day, nobody can play like that.