This is hilarious when people try to discredit the most accurate models. These types of models are used by Vegas. And while they aren't perfect, they are far more accurate than the alternative of humans randomly making bad guesses. The good computer models get things right more often than not and they are certainly more reliable than random internet message board posters.
That said, Tennessee's rapid improvement this season is difficult to factor into those models. The team that barely got by Pitt in overtime would've gotten clobbered by Georgia. The team that beat Bama, obliterated LSU, and destroyed Kentucky has a shot. It's rare for a team to improve this much this quickly and the models have difficulty factoring that in.
Georgia should be considered the favorite. It's in Athens and they've destroyed everyone they've played this season with the sole exception of Mizzou. But we have a better chance than the models suggest if we play like we have over the past few weeks.