Supergirl would win as shown in the scan above but if it was a wet T-shirt contest. Well, Power Girl would take that hands down. And supergirl's experience at being trained in Warfare and Battles by the Amazons and her short term being trained to fight as one of Darkseid's Furies means nothing? Power Girl.
Originally hailing from the world of Earth-Two , first envisioned as the home of DC's wartime heroes as published in s comic books, Power Girl becomes stranded in the main universe where DC stories are set, and becomes acquainted with that world's Superman and her own counterpart, Supergirl. In common with Supergirl's origin story, she is the daughter of Superman's aunt and uncle and a native of the planet Krypton. Although she left the planet at the same time that Superman did, her ship took much longer to reach Earth-Two. On Earth, as with other Kryptonians, Power Girl discovered she possessed abilities like super strength, flight, and heat vision, using which she became a protector of innocents and a hero for humanity. Though the specifics of how vary over subsequent retellings, Power Girl is later stranded on another Earth when a cosmic crisis affects her home of Earth-Two, and later carves out a separate identity for herself from her dimensional counterpart Supergirl once they are forced to coexist.
Though the two DC Comics super-heroines may share similar capabilities, there are 5 things that Power Girl is much better at, and then there are 5 things that Supergirl can only do. Separately, the two Kryptonian heroines have an individual trait that makes them unique and different from one another. And when the stakes are high and the day needs saving, whatever makes them special actually brings out their best. Everything you know about Supergirl and Power Girl starts off with the doomed planet of Krypton. Just before the entire planet is about to explore, Kara Zor-L, aka Power Girl, and Kara Zor-El, also known as Supergirl, are given a second chance at life as they find salvation from inside a rescue spaceship.