Only did a top 20:
1. Tale of Tales (1979, Yuri Norstein)
2. Only Yesterday (1991, Isao Takahata)
3. Grave of the Fireflies (1988, Isao Takahata)
4. Pleasures of War (1998, Ruth Lingford)
5. Barefoot Gen (1983, Mori Masaki)
6. The Girl Who Leapt Through Time (2006, Mamoru Hosoda)
7. Millenium Actress (2001, Satoshi Kon)
8. The Stain (1994, Marjut Rimminen and Christine Roche)
9. In Abesntia (2000, Stephen and Timothy Quay)
10. Death and the Mother (1988, Ruth Lingford)
11. Castle in the Sky (1986, Hayao Miyazaki)
12. The Illusionist (2010, Sylvain Chomet)
13. Perfect Blue (1997, Satoshi Kon)
14. Duck Amuck (1953, Chuck Jones)
15. Ratatouille (2007, Brad Bird and Jan Pinkava)
16. The Wrong Trousers (1993, Nick Park)
17. Porky in Wackyland (1938, Bob Clampett)
18. The Street (1976, Caroline Leaf)
19. Slap Happy Lion (1947, Tex Avery)
20. What's Opera, Doc? (1957, Chuck Jones)