I like all the Disney princesses for different reasons. Even if I don't relate to a character, I know that some girl (or even a boy) somewhere can maybe relate to them. We all have our different heroes, and I'm glad Disney creates such a diverse personality cast of princesses, whether they are actual princesses or princesses-in-honor because of the good deeds they perform.
They're all really pretty in unique ways, and that's important. Not all the princesses follow the traditional sense of beauty...some have weaker chins and thicker ankles and whatnot....because not all girls look the same either!
Regardless of their voices, which are not determinants of someone's beauty...regardless of their lapses of judgement (because not everyone is perfect in every situation).... regardless of whether they have proportional features or not.... they represent girls making mistakes and overcoming obstacles in their own stories in their own ways (and there's many different ways they overcome things), and that's beautiful in of itself! And they represent a lot of hard work from the animators and storytellers working to bring these images to life.