since people are naming Villiages like Carnage, Than Joker seems content with his life, He thinks the toxie bath was the greatness thing ever lol "If it was not for the Batman I would not be the happy soul I am today"
As for heros, Flash seems content. So does Lobo, Wonder Woman seem content, not happy content, but please wityh her life.
Spiderman is other one, Married with MJ, fights crime, and has a daughter in Spider Girl, yep one happy super hero family.
How about Superman??? sure he has this Louis/Clerk/Superman fighting for her loved thing, but hey it happens.
this might be a little old school, but in DC I would have to say Guy Gardner, he was one of the 2nd generation Green Lanterns on Earth along with Hal Jordan. He was all about having fun, laying back,boozing it up, pickin' fights and gettin busy with the ladies. He was even kicked out of the Corps once for not realizing that "with great power comes great responsiblity", and when he came back they gave him a yellow ring.
As for Marvel I would have to go with Nick Fury. Especially the Ultimates version of him(the one that Looks like Sam L Jackson) this dude loves to spend up the governments money for his own personal advancement, plus he seems to get a real big kick out of messing w/new hi-tech weapons and what not plus he's the consomate ladies man, and he talks in slang every now and then. (oh)and that whole raining on bad guys parade thing