I don't think there's much parity in college hockey. There are about 8 programs with a realistic chance of winning national titles, and the other 50 are all hanging around hoping to be a cinderella story.
There are lots of structural reasons for this - the combination of the NFL salary cap plus players' ability to negotiate for "fair market value" means that it is impossible for a few teams to hoard all of the best talent. Also, with only 16 regular season games (instead of 34), there will be a much greater probability that teams will over- or under-perform from their true capability based on randomness. A bad bounce in hockey will cost you 3% of your season, while in football it is 6%.