Great Rivalries

As mentioned yesterday, I am pretty disappointed with the outcome of the OU-TEXAS game. OU I believe is the better team, but in rivalry games, you can pretty much throw out the records, and many times the best team doesn't win. In fact, in the last 5 or 6 OU-TEXAS games, the lower ranked team has won. 

Regardless, rivalry games are always fun to watch. When it comes to great rivalries, I would put the OU-TEXAS game at the top of the list. 

What other rivalries stand out to you as some of the best?