I keep having a hard time choosing, they're generally all so nice and friendly :)

Maybe Tiana, as she's a big believer in fighting for the life you want, and earning your place in the world, so perhaps would be irked by someone who stood for being treated so badly, used her fairy godmother to get a night out instead of asking for something useful like help escaping the crazy relatives, and then only escaped her bad life because a man rescued her and made her his princess after one night of dancing and small talk. I'm not insulting Cinderella or her story, I do like Cinderella, I'm just trying to imagine how the others might react to her.

I feel like Mulan would get angry at her for not sticking up for herself and not really having any "girl power". She'd be like "Cmon, Cinderella, stick up for yourself!" and cinderella would be like "I'd rather clean." lol

I think Cinderella wouldn't understand people who ran away from their problems.

but Tiana are both hard workers and she has that crazy firend with her whos different but get along well

i don't know. i just see Cinderella as a very well-rounded person who is friends with everyone.