Georgia honestly isn't even close because even when UT is down or UGA is having a good year, the Bulldogs are always beatable. UT fans probably like Richt a lot more than UGA fans.
Outside of the only conference that really matters, I'd have to say Notre Dame, Michigan, Ohio State, Texas, and USC (pre and post Kiffin). And thanks to the 24-7 ESPN coverage, I now hate Penn State.
I hate every SEC team really, they're enimies not allies like some foolishly believe but my the ones I really DESPISE and will never root for unless certian circumstances that will benefit UT.
I could be wrong, and feel free to dispute if you feel necessary, but it seems to me that the older Tennessee fan has a more passionate hate for Bama, and the younger Tennessee fan has a more passionate hate for Florida.