I really dislike Gambon's portrayal- especially in the Goblet of Fire, he was horrible and un-Dumbledore. He did a little better in the other movies but IMO he can't compare to Harris's portayal, which was spot on.

I liked Gambon's energy.

↑ this. I think that Gambon did beautiful job as Dumbledore. Harris definitely fitted part of book-Dumbledore better but Gambon's movie-Dumbledore was much more realistic, energetic, vivid and really captured his true colors and cunning personality and overall, in my modest opinion, he was much more likable.

Although Gambon is a very good actor, he's potrayal of Dumbledore was really bad.

and i...i love Snape :P

... what?

ALWAYS

He was the perfect Dumbledore :) Gambon was good but I didn't like him in GOF.

for Dumbledore

Mr Harris was more like Dumbledore