I don't like Ariel, (neutral) but she interests me a decent amount.

Not really. I don't really seem to have any in that category.

Elsa is interesting because of her psychological mind and anxiety. But she still doesn't have her own defining character or even any personality, so I can't like her.

Nope. :D

Belle, Merida and a little bit of Elsa. Their character traits interest me, but they aren't necessarily good traits. I like certain aspects, but I don't like their overall character.

No sorry most of the ones I not keen on like mulan and Merida don't interest me at all.

Ariel, Ariel, Ariel. I find aspects of Belle interesting (how she's the only princess who has an avid interest in reading- why didn't Disney copy that trait into other heroines?), but I don't really like her.

Tiana, Jasmine, Snow White, and Pocahontas.

Aurora and perhaps Jasmine.

Elsa sorta.