Harry seems more awesome to me because he has a strong drive to get to the bottom of things-- not the same thing as intelligence, though it might be a trait that wouldn't be as interesting in an unintelligent character. (Or would it be? I can't think of an author who's tried to portray that.)

I would be fascinated to read a character who can Get Curious and think skeptically and reflectively about competing ideas, but is only of average intelligence.

Trying to model this character in my head has resulted in some sort of error though, so there's that...