I had to do a image search to see the differences. The old collar wasn't lacy like this one is. There is some sparkle to the medallion also. This new dress has some textile patterns in it as well and the old one did not. Overall it looks to be a step-up quality wise, though the dress in the original animated film was much less detailed. I suppose it's ok for her to wear something nicer now though, since she's a Princess now and all.
"Who inspects these rides anyway, Dopey and Goofy?"
This is by far the BEST redo out of all of them. This is far truer and puerer to the film and to the past costumes than the other look was. The detail is amazing on it and lush. So I would have to rank...
3)Cindy (Gown only, hair still messed up but Cosmo on both coasts is now combing the bangs downward)
4) Aurora(Hideous wig, sleeves all wrong)
5) Ariel (No comment)..............
I think it looks more regal. Love the touch of lace on the sleeves, and the correct poof. The older one looks like something my mom made me when I was 7, the new one looks more professional I think. I dig the lacy details.