I've often thought that the best way to evaluate the strength of a national championship contender's schedule is not to average the rankings of the team's opponents, but rather to evaluate based on the following questions: how many teams did the team in question play that could legitimately beat it and where did it play those games? This measure illustrates why Florida faced a more difficult schedule than USC, or at least it has so far, despite the fact that Southern Cal has a higher-rated schedule, such as by Jeff Sagarin.
Florida has played road games against Sagarin's #6 and #7 teams, the most likely games to produce a loss for a title contender. Southern Cal, on the other hand, hasn't played a team higher than #20 Nebraska and that was at home. By the end of the season, they will have played Sagarin's #3 (Cal), #14 (Oregon), and #18 (Notre Dame) teams, all at home, so they will have a good argument by that point, but now, they have a top strength of schedule not because they've played teams that were likely to beat them, but rather because they didn't play #112 Central Florida.
By either measure, Tommy Tuberville needs to stop complaining, since he has a schedule that is both laden with cupcakes AND is bereft of road tests. It isn't his fault that Alabama and Georgia are down this year, but this isn't the right year for him to complain, especially in light of the fact that Auburn is heading into the Tulane-Ole Miss-Arkansas State portion of the schedule. Or should I mention that, according to Sagarin's ratings (which, as I said above, are not perfect, but they aren't too shabby), Auburn has played the weakest schedule of any of the top seven teams. If Tuberville is preemptively complaining about an unbeaten Big East champion, then I'm willing to listen, but otherwise, he should have learned his lesson during the Arkansas game.