It fits more with the lineup.

^ Never mind that she feels uncomfortable and out of place in it, and her entire personal song, "Reflection," is about how she DOESN'T recognize herself in this dress and wants to discover and feel proud of who she is outside the role the matchmaker dress boxes her into.

I actually think this dress is so much prettier than the other one. Her formal dress is too over the top.

Definitely, it's more natural and fitting to the character.

It suits her. It just does. It's understated, and not flashy, and is feminine without being confining.

Definitely.

I hate seeing her in the other one, it completely ignores her whole character and story.

actually her soldier outfit

^ Ooh! Even better!

When Mulan came out, I kept looking for action figures and dolls that had her armor and/or martial arts outfit, but there were none to be seen. ='(

Lovely.