@UltimaGabe: If you don't use Cpt Jack, someone else will. And by "someone else", I mean "I".
My favorite character was from my favorite little homebrew campaign where our party was highly religious: Gob Quixote the goblin paladin of Sarenrae. Gob had tried to raid a temple of Sarenrae a few years earlier and had unwittingly set a whole world-shattering series of events into motion. The old cleric and paladin couple who ran the temple took pity on him when he was ditched by the rest of his raiding party and turned his life around. He ended up joining a party consisting of a Monk, a flame mystery Oracle, an Inquisitor, and a greatsword-wielding paladin who had the most ungodly (sorry) stats due to rolling more 6's than I've ever seen during character creation (seriously, I memorized them: 18, 17, 17, 16, 14, 12).
Gob rode a boar named Rocksteady and used a crossbow. Gob was pretty weak at first and was mostly comic relief; but by level 10, his raw damage output was second only to the superhero paladin. I played him as filled with child-like enthusiasm for spreading the good word and righting wrongs (both great and small). He lacked Intelligence and would throw himself into danger for a good cause without hesitation. He viewed himself as a legendary hero in-the-making and seemed almost oblivious to the suspicion and fear of others for his goblin-ness. He also had a gigantic crush on the flame mystery oracle. Unfortunately for Gob, the oracle was a snooty nobleman's daughter who was cursed directly because of Gob's mess-up and resented having to go on this quest and give up her frilly lifestyle. The monk was the oracle's bodyguard and had taken to writing a book based on our adventures, so she loved the drama that Gob Quixote inadvertently caused.
I had so much fun with that character that I'm seriously considering playing him again.
The funniest character which I didn't play was while I was DMing. This 6' 6" 300 lb guy played a female halfling arcane trickster of some sort who always pretended to be a little girl while in public to throw off suspicion. That would have been fun enough, but his character believed that human little girls all wanted to be fairy princesses and would act accordingly. He was just WAY too good at it.