I love both and think both have the potential to be considered classics by everyone (I personally already consider them timeless classics).
I'm starting to think the live-action B&tB is underrated, though.

Both but slightly prefer this. Moana is sometimes a bit too mainstream for a Disney movie.

I like Moana, but the overall story just isn't as strong and emotional - it doesn't stick with me like a lot of other Disney movies do. And I really enjoyed Beauty and the Beast.