I watched a bit of a few "prediction shows" on Youtube.  None of them "know" either of course.  They all make guesses because they have to ($$$), and nobody in December will check their accuracy (nor mine).  Vegas odds are "always right", in a sense.  I suspect they make money on every conference champ odds they list, it's a near mathematical certainty with the vig.
Basically, the most probable winner is Texas, with UGA and Bama pretty close behind, and LSU close behind them, then a drop off.
Last year of course UGA and Texas played in the CG and it went into OT, so neither team dominated.  UGA was playing with a backup QB much of the game, but he did pretty well.  Games like that usually come down to some unpredictables.