Haha. I like the dressphere system for how it gives plenty of opportunities for shameless sex appeal, "odd situations," etc. BUT, I can't condone it as an official Final Fantasy product. :) It's the type of thing I'd accept as a fan work, both for what I see as flawed portrayal of characters and a watering down of the series' central nature and themes.
Re: FFX/X-2: Lulu/Rikku