I like Browns fans. They are beaten down, and even though the Seahawks were the best team in the NFL last year, I identify with what they are going through. Plus, they lost their original football team and watched them win two Lombardis after they left, which is absolutely the worst thing possible, way worse than if the Zombie Sonics win a couple titles in the next few years, and that latter thing would probably be terrible for many Sonics fans.
Lions fans are typically just as downtrodden.
Bears fans are okay online, but are pretty nutty in person, from what I hear according to visiting fans of multiple teams. Robert Mays is a Bears fan, though, and most Bears fans I know are like him. Cool, pretty knowledgeable about the game, etc.
But yes, to each his own. Luck seems like an okay guy, but Colts fans and their "GOLLY GEE WHIZ, WE ALWAYS HAVE THE BEST QB ALL THE TIME AND WE GET SO LUCKY BECAUSE OUR LOGO IS A HORSESHOE AND HORSESHOES BRING LUCK DON'T THEY HAHAHAHAHAHA WE LOST LAST YEAR BUT WE BEAT THE SUPER BOWL CHAMPS AND THE RUNNERS-UP AND THAT MAKES US KINDA THE BEST, DOESN'T IT? GOLLY GEE" crap really drives me up a wall. Screw those guys.