I always wanted(and by always I mean ever since the new costume came out) an updated costume to be more like, I dunno, hoplite armour? I was never bugged by the old costume, but then again, I read Witchblade growing up. You get jaded, dammit*! I never saw Diana as sexually appealing, and I never felt that the costume was titillating. (Oh yes, the Dark Age has a lot to answer for). As far as I am concerned, the only thing the old costume lacked was pteruges**.
Seriously though, although Marsten's views on female empowerment have aged (really, really, REALLY) badly, it must also be judged by the standards of the time. It was very contrarian, to say the least. And more importantly, Wonder Woman created a framework that allowed writers to write stories of strong women at a time when those frameworks didn't exist, dammit***! Of course, times have changed, and we rightly expect Wonder Woman's mythology to have changed with it. It would have been really bad today (Would have blown M
M out of the water) but a superhero(ine) is always more than a single writer's work. Diana is mythology in more ways than one, she is interesting as a literary character mainly because of the entirety of her canon, that constantly shifting, quickly torn down and eternally rebuilt status quo.
To put it another way: Do you know who my favourite Marvel Superheroine is? Spider-girl! WHO IS NOT AN INDEPENDENT CHARACTER****,dammit!***** Superhero comics has few superheroines that is not either part of a team or tied to a male character. Diana has her own origin story, her own villains, brand recognition that is up there with the "guys", and that goes a long way dammit******!
*Dammit!
**The studded leather skirt used by greek warriors to protect their lower bodies.
***Dammit!
****Also, she will not receive any new storylines, and was never even a part of the main timeline, dammit*******!
*****Dammit!
******Dammit
*******Dammit!