It sure is worth fighting for! I like the idea of buying her something, asking her to just try it to please you, and hoping she will like what she sees!
I think I am a very lucky mom here. My daughter is turning 16 next Sunday, and she knows perfectly how to dress. She doesn't overdo things, has great colour-taste, it is great! Never any discussions about clothing with her. Isn't that just great? At school she is admired by all the girls for her good taste!

Oops, didn't mean to make you jealous...