The books favor the Tide in a fairly close game.
Interesting take from the London bookmakers here:
"We saw a pair of one-sided games in the semifinals. The Clemson win was more impressive, although not terribly surprising. Alabama beat a vastly inferior squad as the Spartans were the lowest rated team among the four in our eyes. We didn’t want to open on the key number so we could let the action dictate which direction we went. The expected shift is Alabama, and we’ve already moved some juice after opening at -6.5 (-110). The namesake, the pedigree, most is going to be Alabama money.