Which Rose Bowl defense is better?

Dennard is one of the top cover corners in the country, Skov one of the best linebackers. Icon SMI, USA TODAY Sports

This season's Rose Bowl features two of the best defenses in the country in the Stanford Cardinal and Michigan State Spartans. Which unit has the advantage in what figures to be a lower-scoring matchup? To answer the question, we looked at the scheme and personnel that make these defenses so effective. I also decided to break down which unit has the edge on New Year's Day.