* In the two national title games matching the Big 12 and the SEC, the Big 12 has scored 14 points (OU vs. Florida, 2008 season) and 21 points (Texas vs. Alabama, 2009, though the Longhorns had the excuse of an injured Colt McCoy).
The OU-Florida Big Bowl was even more exasperating for the Sooners. OU came in averaging 54.0 points and 562.1 yards a game. Florida came in allowing 12.8 points and 279.3 yards. The Gators imposed their will. OU finished with 14 points and 363 yards.
* Even in three Independence Bowls, the Big 12 has not taken advantage of less-than-stout SEC defenses.
While OSU won 34-31 over an Alabama team that was allowing just 18.0 points a game in 2006, Texas A&M in 2009 scored just 20 against a Georgia defense allowing 26.4 points a game. And Colorado in 2007 scored 24 on an Alabama defense allowing 21.8 points a game.
Conclusion: Big 12 offenses mostly have wilted when going against the SEC.