I think most of it has to do having the notion that the SEC is so much better than the B10 crammed down our throats all season. I know I've heard it enough that I was willing to put aside my hatred for Michigan and root for them because they were playing an SEC team.
Of course, as has been shown in this thread there will be those will keep coming back to the championship game last season as our motivation, but for me it has nothing to do with that. New team, new season. I've had a general hatred for the 3 big Florida schools for most of life.