I think it's hard to say that Alabama is definitively better than Florida, or that Arkansas is better that USC, etc etc. So I'll place them into groups:
Group 1: Florida, Alabama, LSU, UGA
Group 1A: Auburn, UT (only because the talent level in the state of Tennessee isn't as great as the Group 1 teams)
Group 2: Arkansas, South Carolina
Group 3: Kentucky, UM, MSU
Group 4: Vandy