*Spoilers*
I was satisfied when I knocked the prick down on his asshole that he calls a face. Gary was brilliant, hilarious, but mostly a bastard. When I finally smacked him down it gave me gratification like nothing else in the game.
I give props to Gary for being a deep and engaging character, I do not like him, however, and neither should anybody else. The dude is an ass.
And if Petey was so bad why was that Gary's only friend until Jimmy arrived? Petey is tight, helped defeat the greasers. Also, Petey is probably homosexual, but that doesn't make him a bad person.