I dunno about NFL vs. College. With basketball, college basketball is DEFINITELY better than the NBA. With NCAA, I would say its about even. Just because there's a higher level of talent in the pros doesn't make it any more entertaining. There are things like school tie ins, the big upset in college that make them more exciting to me than a lot of NFL games.
The game itself as well, a lot more trick plays and misdirection than the pros, and creativity in playcalling. Funny how the Wildcat offense everyone is raving about in the NFL was done before in the NCAA with teams like Pat White/Slaton and WVU, along with McFadden at Arkansas.
Then again, College Football has a seriously balance of power problem, and the parity in the NFL makes it interesting. It gets old seeing the SEC's cock sucked constantly and teams fates sealed by a poll popularity contest at the start of the year. Oh, and of course, the horrible BCS and the fact there's no real champion crowned, just a slew of irrelevant consolation prize bowl games.