My Neighbor Totoro, Howls Moving Castle, and Nausicaa generally stay at the top for me. It does depend on my mood though. Basically anything by Miyazaki is a favorite. I enjoyed Only Yesterday and from Up On Poppy Hill quite a bit, and I'm sometimes just in the mood for those. Cat Returns is fun. Haven't seen Earthsea, and I thought Whispers of the Heart was only OK. Grave of the Fireflies was well done, but I will never watch it again. So depressing.