I've been to games at the following places: Alabama, Mississippi State, Ole Miss, LSU, Florida
Nobody can compete with the LSU crowd. The stadium is big and imposing.
Florida has a nice stadium, and when everybody does the gator chomp it's pretty cool. Still, Florida fans seem to think it's more imposing than it really is.
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You need to go to Tennessee..LSU might be loud, but Neyland Stadium this year after they took the lead vs. Bama was deafening. Their stadium is huge and a giant bowl which prevents sound from leaving, it is by far the biggest home field advantage in the country and I wish Alabama would close the south endzone to create the same effect