Looking at the top 5 there are some strange things going on.
OU has the 2nd [tied with Georgia] average player ranking at 3.83. Bama is #1 at 4 average player ranking.
OU is at #5 and Texas is at #4. At the very end of the recruiting season Rivals changed some player rankings. Would you believe it if I told you that some Texas recruits ranking went up and some of OU's player rankings went down!
Well, the mucketymucks at Rivals are heavily influenced by the numbers of Texans involved in that site.