Other than what JCA already noted about the rules there isn't much. The talent level certainly doesn't compare to the NHL but there are some who feel that NCAA hockey can compete with the Canadian Junior Leagues now. We seem to be importing more and more really talented Canadian kids who like the idea of playing competitive hockey and getting a good education.
FWIW regarding ice surfaces, it's my understanding that some schools use the international ice surface while others use the NHL surface. I like the idea of different ice surfaces because it allows you to build your team around your home ice surface.
