At least the ones rooting for Auburn tonight:
No one else does this. Red Sox fans don't pull for the Yankees in the World Series. Whichever team loses Steelers/Ravens on Saturday won't be cheering on the winner to represent the AFC North. That's because the first rule of sports fandom is if you can't root for your team, the next best thing is to root against your enemies.
All Bama and Oregon State fans rooting for their rivals tonight should be publicly shamed and forced to wear their rivals' gear to next year's Iron Bowl and Civil War.