Joanne, these are great choices. I'd say for me: It's a Wonderful Life (from the movie category), followed closely by A Christmas Carol (a couple of the old versions) and the original Miracle on 34th Street. In the cartoon/TV genre: I love The Little Drummer Boy. I love the last line, "Blessed are the pure in heart, for they shall see God."
I really like many of the cartoons like Rudolph and The Grinch and The Year without a Santa Claus (if just for the Snow Miser and Heat Miser), but I never liked it that they gave Santa the power to cancel Christmas. We all know Santa would never do that. There was a cute one "Twas the Night Before Christmas" about some mice a while back that I liked. Of course there was Frosty the Snowman, and the various bad sequels that didn't live up to the original. But my FAVORITE of the Cartoons (other than The Little Drummer Boy) is Santa Claus is Coming to Town. I loved it as a kid, and I love it even more as an adult because it does something few of the others don't. It acknowledges the true reason of Christmas. At the end Santa and the love of his life who was to become Mrs. Claus are married, as the narrator says, "on the holiest night of the year, Christmas Eve." That to me says it all. And oh goodness I just realized I left our A Charlie Brown Christmas. Another classic and one that also hits the mark on the reason for the season. Merry Christmas everyone!