If I were betting on the game, I'd look at Michigan's 4th quarter stats and compare them with Alabama's (which I haven't done).
Since the days of the Bear, the Tide has been an incredible 4th Q team, as we saw most recently during the SEC Championship v. Georgia. If Michigan is weaker there, watch out.
In my relatively brief experience of living here, if Alabama is behind in the last two minutes, it's not going to go for the usual onside kick or for a field goal to tie the game. It will pull out an incredible touchdown play to win it. This should be a fantastic game.