The latest AP Top 25 college football rankings have seen significant changes following a series of upsets during Week 13. Oregon remains the unanimous number one team, while Alabama and Ole Miss have dropped out of the top 10. New entrants Miami and SMU have climbed into the top 10, marking a notable return for SMU. The rankings shuffle has implications for the College Football Playoff picture, as teams like Georgia are making a comeback into the top 10 after notable victories. As we head toward Rivalry Week, the competition remains fierce, with teams jostling for position in a potential expanded 12-team playoff format.