Kaze no tani no Naushika
One of Hayao Miyazaki's earlier movies, but to me this one stands out as the one he manage to fulfill throughout. There's no doubt this might be one of his movies where his environmental message shines through even more than usual, but the story never suffers from this message.NausicaƤ might be one of the finest characters ever portrayed, and the people of The Valley of the Wind helps build her up.
The animations doesn't come close to what we've later seen from Studio Ghibli, but we got to keep in mind it's 26 years since he made this one. Never the less. The details are quite stunning here as well, especially in the background both in the Valley of the Wind and in the Sea of Decay.
So far my favorite animated movie, and these days that's actually beginning to say something as I keep exploring the masterpieces of the past.