The recent arm-wrestling match between Wonder Woman and Wonder Girl indicates that Wonder Woman is incredibly strong, even without the help of Zeus' power. This suggests that her strength surpasses that of Shazam, despite his gifts from the gods. While an arm-wrestling match may not be the ultimate test of their capabilities, it implies that Wonder Woman would probably emerge victorious against Shazam in a showdown.
In Wonder Woman #5, a surprising show of strength subtly confirms who is stronger between Wonder Woman and Shazam. As Diana fights a one-woman war, her closest allies try to stop her from going overboard. One challenge accidentally reveals how Wonder Woman compares to the Earth's Mightiest Mortal.
The various Wonder Girls compete against Diana in different games to stop her from waging war against the United States military. Wonder Girl Cassie Sandsmark chooses an arm-wrestling competition, confident in her strength from Zeus. Despite exchanging words over Diana's situation, Wonder Woman defeats Wonder Girl, who promises not to interfere with Diana's mission.
Wonder Woman and the Amazons have been under attack since a rogue Amazon named Emelie killed a bar full of men. This led to the Amazons being banned from the United States, but Diana stayed to fight the law and bring Emelie to justice. Despite facing difficulty from all sides, Wonder Woman has remained steadfast in her mission to end the conflict as peacefully as possible.Not only Wonder Girl, but also Billy Batson's superhero alter ego, draws strength from Zeus, giving him power that rivals Superman's. Although Wonder Woman previously had a blood connection to Zeus, it has been downplayed in the current Wonder Woman series, and she doesn't need his strength to beat Cassie in a battle of pure strength. This raises the question of whether Wonder Woman is stronger than Shazam, as both draw power from Zeus.
Shazam might have gifts from the gods, but Wonder Woman was similarly blessed with otherworldly power. Additionally, Diana has a lifetime of battle experience and training, giving her an edge over the younger and more inexperienced Batson. Until the two heroes actually face off, this moment serves as the best evidence that Wonder Woman could easily defeat Shazam.
Wonder Woman #5 is currently available from DC Comics.