I've always experienced the fan bases this way:
-- Bama fans are stupid and loud. They talk an awful lot, and it hurts your head because most of it simply doesn't make any sense. In the world of nut jobs, they're the ones who are pretty sure they were anal probed by aliens once. It goes without saying, but I'll say it anyway: they tend to have small, beady eyes from generations of intra-family breeding.
-- Florida fans are sarcastic and cynical. They wear mullets and jorts, drink PBR in cans, think alligator-tooth necklaces are the height of fashion, and believe they're smarter than everyone around them. Dewey Crowe from Justified? That's them. They can fake you into believing they're cool for about 30 minutes, then it all starts to unravel. Badly.
-- Georgia fans are passive-aggressive. They never look you in the eye, so you underestimate just how negative their every thought is. They hate themselves, and so they hate everyone else, too. They are, honest to God, smarter than average ... but emotionally, they're stunted worse than that Lannister dude in Game of Thrones.
-- Kentucky fans used to be the friendliest of the SEC fan bases (in football...basketball is a whole nother matter). But in the last couple of years, they have turned into Georgia acolytes. Passive-aggressive and everything, just like Georgia trainees.
-- Vandy fans have sticks up their bums. They know exactly where they stand in sports, so fall back on academics. And are happy to tell you so. If a geek met a nerd, had a test tube baby, then put it up for adoption with the robot from Lost in Space, 20 years later it would be a Vandy fan. One of three, in fact.
-- LSU fans are lunatics dressed up in purple shirts and a big smile. They tend to carry voodoo dolls in a pocket "just in case." They believe in magic, which they call gris-gris. They do horrific things to chickens before football games, "for the luck." There's always a pot of stew on the fire in their homes, and you should never ask what the meat is.
So...more cocky than most? I'd say more snide and casually arrogant. More dissembling.
Go Vols!