I often find myself tying two different Muppet movies in one spot, as I have a tendency to go back and forth on favorites/least favorites.
1. The Muppet Movie and Caper
2. The Muppets and Most Wanted
3. Manhattan and Christmas Carol
4. Treasure Island and Space
5. Swamp Years and Very Merry
6. Oz. Yep. All by itself.
I consider Letters to Santa a TV special, rather than a movie. Tempting as it is to rank the specials, it'd be best if I saved that for another thread. As though this one doesn't go off topic enough.