I've usually placed something in Fantasy if a "Castle" was involved.
There will always be those stories that are "bi", either/both, but I think that's a good place to start, if one must categorize to understand and enjoy.
I enjoy animated fantasy because the cost of presenting a fantasy world/creatures, (time-money-space), is less, and an epic of anything/anywhere, can be told saving $millions & years with no sacrifice (as far as I'm concerned) to the caliber of it?