he ranges from putting up a fair fight against orion and superman to getting utterly owned by them. Dan Turpin even managed to take him down once before iirc. If we're going by new 52, then he seems to be physically superior to grail (who herself is equal to or possibly above diana).
Well..the cartoon version of Kalibak beat the cartoon version of Wonder Woman..if that means anything. So I guess some versions have.
Of course with these versions Kalibak is far too slow to lay a hand on her so she stomps.
__________________ Chicken Boo, what's the matter with you? You don't act like the other chickens do. You wear a disguise to look like human guys, but you're not a man you're a Chicken Boo.