Power Girl's outfit is made as a parody of the entire super-heroine-revealing-costume-trope.
The problem is they decided to change hers and make all the other ones even more revealing, so they're trying to distract us from the fact that they're getting worse by fixing up the outfit of a parody.
The artist and creative team on worlds finest where not the same ones who did super-girl and the outlaws. So you can't blame them for something everyone else is doing. They were trying to be innovative but when they were swapped out the new team decided to give her back the cleavage outfit because nerds complained they couldn't see her boobs. Also catering to nerds who are in their 40's is a bad business plan. You still haven't explained why her new 52 outfit was terrible.
Your explanations aren't good. Her old outfit is generic, impractical and makes her look like a bimbo who wants attention. The only thing she had going for her is that she had giants boobs, she had no personality.
Her old outfit was generic?!? It's been hailed as one of the most original over and over again by numerous artists, those in the comic book industry and outside of it; if you want to talk generic, take another look at this new 52 piece of trash. It looks like a space suit designed in the 1950's or 60's, and not to mention it has the ultra-original (and I really hope you're picking up my sarcasm here, 'cause I'm layin' it on pretty damn thick) initials on the chest, a design style so outdated and stupid-looking that even kids in the 1980's were already ridiculing it, and the design idiot who thought it up probably thought it was "way cool" and "hip to the max" to put the stylized "G" - from PG - on backwards... *facepalm* ... I'm surprised he didn't put a backwards baseball cap on her, as well, because, hey, that's a really "bodacious" and "radical" look these days, right?
The classic look is an original mostly for two reasons; the first being its color - not too many comic characters have a costume that's mostly just plain white, therefore that spot of pure white is instantly eye-catching in a sea of multi-colored superhero costumes and/or uniforms - and the second being the very fact that it has no logo anywhere on it, so she's identifiable by the very act of being unidentified, which is a pretty damn fun and cool idea if you think about it .
Power Girl is so famous for her boob window that it's actually mandatory that she has it now. That's a shame since these skin tight outfits aren't supposed to leave anything to the imagination anyway (that means that the boob window is redundant).
The new suit is has way too much fabric and would so only give her disadvantages in agility and in flight and so, slow her down because of the increased weight. Also is the logo wrong which means that nobody would recognize her which could lead to an attack by her friends. Also would make it harder to hide it under her normal clothes.
She is right to dissaprove the new thing. Totally right Sorry gotta go now.......
I understand where DC was going with this...for as good a character as PG is, it had gotten to the point where people were looking at her like she was a caricature of everything wrong with how comics has traditionally portrayed women, almost like fan service personified. The boob-window was a running joke and DC understood that the character was always going to be defined by it until a change was made. Plus, I always got the impression that the relaunch of World's Finest was intended to be more accessible to female readers, a sort of "buddy-cop" thing with two strong female lead characters, so I guess DC felt they needed to make PG's outfit more "respectable" (whatever that means).
But the replacement costume was just horrid. Like, "80's jumpsuit horrid."
I mean, they tried this once before, back in the Justice League Europe days, with that silver & gold outfit (when she was retconned to be Arion's granddaughter...) and it was just as horrid then. PG's look is iconic and she just doesn't "look like Power Girl" without it. So what I don't understand is why they didn't just tweak it. Boob-window a joke? Fine, make it smaller and move it to the base of her neck; still showing a bit of cleavage, but she's no longer threatening to spill out of it. Not that big a deal. Amanda Conner tweaked the outfit from using a medallion clasp for the cape to a pauldron, and no one threw a fit; Hell, I personally think it was an improvement. Tweaks...not overhauls.
Personally, I think if the "window" was in the new costume, it would be a better balance of improved practicality while still keeping some of her sex appeal and the personality that goes with that. But I don't really think the new costume is -bad- anyway.
The new costume wouldn't tick me off quite as much if PG hadn't actually given her reason for it.
Changing the characters personality ticks me off more than changing their costume. I haven't read any of the new 52 comics, so I actually don't know how much they've changed her. If it's to the degree that they changed Starfire, though, I'll hunt them down and hang them from the wall by their underwear.