She's just cutesy pretty from the official CGI version I've seen.

1.Ariel
2.Tiana
3.Jasmine
4.Snow White
5.Rapunzel
6.Mulan
7.Pocahontas
8.Belle
9.Cinderella
10.Anna
11.Aurora
12.Merida

I think she'd definitely be one of the least pretty but I'll have to watch her in movement. Like most DPs, she might have some lucky gorgeous shots.

Anna is a copy of Rapunzel, and Rapunzel ranks about 7th to 9th on the prettiest princess. But the look suits better on Rapunzel

I'll definitely have to watch Frozen before I make judgments but she might be in this range for me because Rapunzel is my #1 and if she looks like her, I'm assuming she'll be in the mid range or maybe even top.

I have to see an official image to judge, but so far, she's cutish.

I guess somewhere around Rapunzel's, who's 7th on my list at the moment. But definitely above Cinderella and Ariel. And maybe above Mulan. I don't know, I need to see the movie first.

I don't know she looks like a goofy and crooked version of Rapunzel but I'll have to see her in motion

1. Ariel
2. Belle
3. Aurora
4. Jasmine
5. Tiana
6. Pocahontas
7. Rapunzel
8. Cinderella
9. Anna
10. Mulan
11. Merida
12. Snow White

Well since Rapunzel is last on my prettiest list and so far Anna looks like a carbon copy of her.. yeah.

That's the problem though: materials that have been released so far in regards to upcoming Frozen, including Anna's character design, are concept arts that considering Disney's clearly established tendency rarely end up being reflected in a final product. Rapunzel's character design changed, reformed and evolved drastically through the stages of animation process which might be the case with Anna as well. In addition to that Disney marketing team wouldn't take the kind of a risk to introduce a character so blatantly similar to one of the most recent princesses therefore I'm expecting Anna to have at least a number of unique prominent features that would define her and become her mark in terms of appearance. Untill the movie is out though, it's virtually impossible to form a proper opinion.

1.Belle
2.Ariel
3.Pocahontas
4.Aurora
5.Jasmine
6.Cinderella
7.Tiana
8.Anna
9.Rapunzel
10.Mulan
11.Snow White
(12.Merida, but she's a Pixar Princess, not Disney)