According to Wikipedia, there have been 15 movie adaptions of The Hunchback of Notre Dame. I've selected what I think is the top five versions of Quasimodo. Who's your favorite? Vote in the poll to the right.
I think the Chaney version is iconic and I love it. But, my favorite is probably Laughton. I've never seen the Quinn adaption. I remember seeing the Hopkins version when it originally aired and liked it very much. I even have it on VHS. I have to say that I also like the Disney version, even though it has been "Disneyfied".