There are reasons that Harry wasn't in Ravenclaw.
When he was getting all those Hogwarts letters, he kept trying to grab one from the air, instead of the ground. Then he tries to run into his cubboard like, why not out the front door?
When he gets the nimbus 2000 he says, hmm, I wonder what's in this broomstick shaped package? OH NO WAY, ITS A BROOMSTICK!
Then, the Chamber of Secrets. Hmm Slytherins symbol is a snake... I wonder what could be in the Chamber of Secrets?! MAYBE A CHIHUAHUA!!!
