Yay another Christmas special hee hee. I liked when Chikorita woke up the other pokemon and how Psyduck ended up rolling in a big snowball. It was cute how Pikachu found the medicine to cure the sick Stantler as well.
Oh happy day, Santa's sleigh finally had actual deer-based Pokemon to pull it, unlike in that Kanto Jynx episode where Ponyta were used. Speaking of which, I liked how this episode was more traditionally Christmas-themed unlike the Jynx one.
What I liked about this holiday special was that Pikachu and the others didn't just goof off. They were given an errand by Santa Claus to find the herbs that would cure his sick Odoshishi, and it made this special more plot driven. I especially liked how Pikachu wore the star ornament.