Her and Ting-Ting are pretty equal with me. I like Mei as well, but I like the other two a fraction of an inch more.

I never sat down to watch this movie.

By the way, when Pei Pei's character is revealed (She's the emperor's daughter in Legends of Awsomeness) I might make a pick with her here... Just a warning!

I like Mei. Not because she gets more parts than her sisters do, but her personality is good because she's trying to do the right thing when she's finding love. Plus, I find Ting-Ting too uptight and Su kinda behaves childish :P

Mei is very sweet.

Su is too immature and Ting Ting is too strict.

I like Mei but Su is the prettiest!

They're the emperor's daughters.

She is funny!

she's the only one i like. the others are pretty stupid

noone of them really but she follows her heart so..

She is so sweet and optimistic! She reminds me of Rapunzel a lot.
I love Ting-Ting as well. She is responsible, dutiful, caring, selfless and motherly.
Mei is my least favorite. She put the guy she whom barely knows( and who is one of my least favorite Disney characters) before her country's safety. And I also imagine Mei being Khal Drogo's fangirl and Drogo/Dany shipper.