My favorite movie (and intro because it's from said movie) is without a doubt Kimi no Na wa. The music (especially the intro), the art (especially the intro), the voice acting, and the story are all just so amazingly perfect for any form of story telling that it's just a must watch. No words could do it justice anyways (especially without spoiling it). Now if I had to go with a tv series show and not a movie, It'd be tough but it'd have to be between Guilty Crown, Toradora, Sakurasou no Pet na Kanojo, and Plastic Memories. I'm leaning more toward Plastic Memories but they're all very good shows. Plastic Memories is a must watch show as well. A very sad story that most people consider to be even more sad than Clannad or Angel Beats.