1. Howl's Moving Castle (Hauru no Ugoku Shiro)
2. Spirited Away (Sen to Chihiro no Kamikakushi)
3. Princess Mononoke (Mononoke-hime)
4. Tales from Earthsea (Gedo Senki)
Which one of them is the best in your opinion? I personally think all of them are great, but Howl's Moving Castle is the best by far. 2nd up would be Tales from Earthsea. I love their animation quality and story plot. Splendid anime movies.