Giganta is hot. And it's remarkably stupid that she should become a villain given her initial failed bodyswap attempt was missed and the successful body swapping stunt actually worked without a hitch or again anyone noticing.
Heck, there would have been a huge mileage in her actually being a hero with the Damoclean truth of who she was ready to fall at an inopportune moment precipitating a fall to villainy.
One of the other things that bugs me about the Heinboot is how everyone seems to instantly suss that Diana is being subbed for by the woman who is meant to be effectively her identical twin.
Or that Circe arguably does a better job of being Wonder Woman than Diana.