She is definitely the most stubborn and the hardest to please

^^Yeah but at a normal rate. She'd be pleased if she could find a guy worthy of marrying and without being a douche.

Ariel has BIG dreams, and if someone else won't encourage her, then she's gonna go all out EXTREME.

or Ariel

She sets a tiger on a suitor because she doesn't want to be forced into marriage. I call that stubborn.

and Jasmine, both are pretty stubborn.

First Ariel, later Jasmine.

Both Jasmine and Ariel come to mind, but I chose Jasmine on the fact that she came to mind first

I think so.

I think it's really is Jasmine but she just came first in my mind. Determined would maybe describe Mulan little better.

Just look at the picture of her.