Rise of the Guardians is a quite a new Christmas movie, but it's just so good that it has to be one of my favourites. I watched for a week straight when I first got the DVD because it's awesome and also because of Jack Frost.
I adore Christmas with the Kranks. I've watched it every Christmas for the past 5 years without fail because it's just hilarious! And I tend to love any comedy with Tim Allen.
The Grinch is the only Christmas movie I have to watch myself. My family don't like it, and myfiancé is terrified of the Whos. But I adore The Grinch.