Imagine what a great poster that would make if she were wearing the Diana Rockwell armor, or even the getup from the Medousa fight.
I'd mix and match: the top half of the Diana Rockwell armour and the bottom half of the Medousa fight armour. That would avoid the Ptyrges of Fail.
You know, I wonder if this story was sold as a JLA because editorial didn't think that it would have done so well if it was marketed as a Wonder Woman book. Individual issues of the JLA can (and occasionally should) focus on one character, but not entire one-shots. This is a Wonder Woman story, and that's all there is to it.