If I can only pick one, it would have to be National Lampoon's Christmas Vacation. I watch it about 3 other times during the year besides at Christmas. Love it!!
The animated series "fruits baskets" is at the top for me. As for movie, I guess maybe "17 again" or "Pirates of the Caribbean 2". I'm sorry, I'm sure there are better ones, but these two have a dear place in my heart.
That would be a toss up between Blazing Saddles and Animal House. Those movies were hilarious!
Dumb and Dumber.
The movie Dutch with Ed O Neil the guy from Married With Children.
not sure