And he claims he doesn't have a favorite

Why haven't I noticed this before?!?

Dear Lord, he's right....

He wasn't the one that put it there, so we can't really say that

He is in Gryfindoor though...
"During his time as a student, Dumbledore was in Gryffindor House"
http://en.wikipedia.org/wiki/Albus_Dumbledore

Well, it's true...