One thing to look forward to every december, is the advent of Christmas cartoons. My absolute favorite is Rudolph the red-nosed reindeer!
Next would be the Charles Schultz classic, A Charlie Brown Christmas.
My third choice would be a lesser-known one, Twas the Night Before Christmas.
My next choice would be, How the Grinch Stole Christmas. A great one from Dr Seuss.
Then, no Christmas is complete without Frosty the Snowman!
Next are a couple of good ones that never got as much love as the others. The
Year Without a Santa Claus (I love those freaking Heat and Cold Miser brothers) and Santa Claus is Coming to Town.
A newer one that I love is A Pinky and the Brain Christmas.
Charles Dickens classic, A Christmas Carol, is well done with Mickey Mouse, but I prefer the Muppets version!
Honorable mention goes to The Little Drummer Boy, and while I love the song, the cartoon isn't my favorite.