1. How to Train Your Dragon
This is the only animation I have no problem picking, it feels alive. I mean basically there's one scene in the movie that sums up everything where the Main character has an argument with his dad and his dad walks out of the room and in one action you feel the conflict this father feels it sums it up perfectly. The interactions in this film are just so genuine, that sums it up it just feels genuine. Any and all reaction in this film just feels real and believable, that's why it's my favourite.
2. Batman: The Dark Knight Returns 1+2
This is technically two films but it's really just one really long one based on the Frank Miller comic of the same name. It's one of my favourite Batman story lines and is perfectly realised in these animated movies. The tone is spot on, the acting is great, and it moves so fluently. It's basically the pinnacle of animated Batman, not including Bruce Timm's series. I would put the series here instead but I want to stick to movies.
3. Disney's Hercules
I've always been a fan of mythology, especially Greek, so when this movie came out I was ecstatic. I know this isn't an accurate representation of that but it is a fun one. I find the humour is great, the songs are catchy, the art style is one of kind, and it's overall incredibly enjoyable. This is my favourite Disney film closely followed by the Hunchback of Notre Dame.