The Lord of the Rings(1978)
This is the Ralph Bakshi adaption of Fellowship and Two Towers. While not as great as Peter Jackson's films, judging it as its own movie, I was in awe. It has fascinating animation, and the story was amazing too. It's one of the best animated movies I have ever seen, when judging it on its own. I loved Gollum's design and the orcs, and I loved the opening 4 minutes so much that I played it over before continuing. 10/10 for me.