Why do the supermonsters PUNCH instead of BITE when they're fighting?

UGH. I know. I am so tired of superbeings punching each other on this show. I still think of that episode where Uriel and Castiel had a clumsy fist fight as the point where SPN jumped the shark for me. (Yes, I'm still swimming along with them, but that shark will always be there in the rear view. :D)