Oh I love Christmas movies, and many of my favorites have been mentioned. Let's see my list goes something like this:
Scrooge (Musical w/Albert Finney) ("Thank you very much, thank you very much that's the nicest thing that anyone's ever done for me")
T'was the Night before Christmas (animated w/mice) ("we'll do what's necessary 'cause even a miracle needs a hand" )
Miracle on 34th Street (original with John Payne and Edmund Gwynn)
A Charlie Brown Christmas
A Christmas Carol (w/Allister Sim)
And It's a Wonderful Life

Oooohh (goes running to tape drawer), now I have to watch one.