I run a video store. Treat is the only person I know who has seen more movies than me. I've watched more screeners though, which means I've seen more really bad ones.
Comedies are great, but they never can be considered the best movies. You need more than humor to be considered best or favorites in my book.
I find myself remembering only the funny parts of comedies, which is a good release from reality. However,I can remember the whole story and character development of Shawshank Redemption which is the basic reason for it being my favorite.