It should be a competitive game. That said, the Alabama defense is so good. They are a frightening defense. Up there among the best in college football history. Are they as good as the 2011 squad? Remember that team gave up only nine offensive TDs, every starter played in the NFL (as did 4 backups). They were enormous and fast and bludgeoned opposing teams to death.
This defense is similar in skill, and Clemson is awfully good as we witnessed them dismember a very young Ohio State squad, but I'm going to have to go with Alabama. We're witnessing a historically good defense fellas. Combine that dominant defense with a very good offense and I don't see anyone stopping them. I'd love to be wrong.