most of the disney princess are straight 10/10s, jasmine included.
but ariel is on another level. she's that rare, godlike 11/10. She just has no equal.
in the movie her design and the way they animated her, all the little details are what puts her over the edge.
Ariel is like this webm, but for the entire movie. chel didn't have this level of animation for the entire movie, no other princess did. only Ariel, and that's what puts her at the top.
only when you start going by fanart does Ariel come back down from her god status, because the fanart and still images fail to replicate her as she was in the movie.