re: How effective are high scoring offenses in winning the NC?

Based on your definition of "new offenses" I wouldn't say Florida, Texas or Oklahoma were "traditional offenses." So in answer to your question, it looks to be about the same effectivness.

Simply put, the teams with the best players and the ability to fully utilize their talents generally win the National Championship regardless of what "style" they employ. Teams like UF, Tex. and Auburn had outstanding dual-threat QB's and used them to the fullest to win titles. Teams like LSU and Bama had outstanding defenses and solid OL play. They rode that formula to the NC