Wonder Woman, Superman, Thor, Captain Marvel, and Power Girl are all aboard an indestructible, buoyant water raft cascading down the notorious Gunnison river. All characters are stripped of standard equipment (with the only exception being Wondy, as she can keep her bracers), flight is disabled, and any character to leave or be removed from the raft is immediately disqualified. The raft has a dimension of 30x30. Whoever is the last man standing on the raft is deemed the victor.
This sounds like some sort of sick fantasy. I pick PG. Supes is off first, he tries to talk. Thor is second, he doesn't respect the ladies. CM is off because of the close quarters with the cleavage, by golly! PG one-punches WW off the raft because her boobs are bigger.