Spirited Away.Just saw Princess Mononoke last night.
This film is a keeper! I'll grab it the moment a blueray remaster/special edition/remake is announced. 10/10, tied with Moribito: Guardian of the Spirit for my most favorite anime. Now I want to watch all of the Ghibli films now. I can already tell it's the Disney of anime.
On a related note, I also just rewatched Toy Story 3 on Tuesday night. Makes me want to get a Totoro doll now (maybe that should be the next Ghibli film I watch?)