This question was posed on World-O-Crap, which I read pretty much daily.
I didn't have to think for two seconds. "It's A Wonderful Life" is my most hated Christmas movie ever. Like many "classics" I just can't abide it. I read somewhere that Frank Capra didn't like it either, and he hated the fact that his career was reduced to that one movie.
Sadly, I liked "A Christmas Story" a long time ago, but now that they insist on showing it 46 billion times every year I hate it as well.
My favorite Christmas movies are "The Ref" starring Dennis Leary, and "Scrooged" with Bill Murray.
I hate almost all Christmas specials. But I love "Pee-Wee's Christmas Special", "A Charlie Brown Christmas", and, of course "How The Grinch Stole Christmas".
Now, tell everyone what you think!