Three undefeated teams bit the dust this weekend - Louisville, Purdue and Virginia. Now, the number of undefeated teams falls to just four -- USC, OK, Miami and Auburn -- with half the season still to go. (Sorry Utah and Boise State just don't count.) Personal note - I know that all of you "Hurricane Haters" were giddy for the first 59 minutes on Thursday night, but the Canes remain in the championship hunt with a terrific 2nd half comeback. This was one of the best games I've ever attended. Out of the above four teams, who will stay undefeated during the year??