There is a huge over estimation on the SEC teams that has been getting worse and worse. They always have 5-6 teams ranked in the top 25 at the beginning of the season (a reason I believe pre-season rankings should be done away with). WHen they play each other and lose, the losing team will only fall ~5 spots in the ranks. Then they play their cupcakes and keep moving up. In all actuality, take away Bama, LSU, and Ugga (pre-injuries) and the SEC a very average conference. The top teams just beat each other once or twice a season and that is enough to carry them to BCS bowls.
To bring that rambling home, I do not believe most SEC teams play more than 1-2 top 15 teams all season, despite what their rankings may say.
Using the FINAL AP poll rankings, for the period 2008- 2012, here are the number of top 25 and top 10 teams played by a number of major programs starting with a random selection of teams who finished, on occasion,* in the top 5 of the final AP top 25 poll in this period. Also shown in the right-hand column is the win/loss record
Team # of Top 25/Top 10 teams played Win/Loss record
Alabama- 23 & 13 16-7 &7-6
Arkansas- 23 & 15 6-17 & 3-12
Auburn- 26 & 12 9-17 &4-8
Florida- 25 & 13 11-14 & 6-7
Georgia- 20 & 10 5-15 &1-9
LSU- 25 & 15 11-14 & 6-9
Texas A&M- 20 & 9 5-15 & 2-7
Oregon- 17 & 10 9-8 & 3-7
USC 13 & 11 5-8 & 5-6
Oklahoma- 25 & 7 11-14 & 1-6
Oklahoma St 18 & 6 7-11 & 1-5
Ohio St- 17* & 7 9-8 & 3-4
Notre Dame- 16 & 6 4-12 & 1-5
Texas- 18 & 4 8-10 & 2-2
Stanford- 15 & 9 8-7 & 2-7