Vegas Odds versus NCAA rankings

NCAA rankings are stupid and no one likes them, but that's okay because the people using them don't have any skin in the game.  What I want to know is whether or not Vegas does a better job of predicting the outcome of matchups than the NCAA rankings.  So I'm currently rooting around for historical Vegas Odds and going forward this season we'll be taking the vegas odds and NCAA rankings before each ND game to see which is better (if they differ).  I might end up choosing more teams if ND isn't terribly interesting, but this is the plan.