the smash bros would win easily. They can kill you by throwing you of the platform the sony people need to hit you with their special move. Also the SMASHers have wavedashing etc. PSASBRers are slow and clunky in comparison.
And FYI Kratos cant win! why? Play GOW and jump of a cliff thats why. (YOU ARE DEAD) Mario alone has up to XXX lives (see Mario 3D World) Kratos only has 1.