Ok, lets say we threw all the greatest warriors in the world in a pit, who would survive? BASE IT ON FIGHTING, not how well their army was. Also, give a reason for your explanation.

And no religious nutjob shit either.

PS, NO: JEBUS, LEONIDAS, FRANK LUCAS, JAMES BOND, JACK BAUER, JASON BOURNE, BEOWULF, ROBIN HOOD, KING ARTHUR, OR ANY OTHER OF THAT SHIT.

I heard Genghis Khan was unbeatable, so I vote for him. But then again, I don't know much about this so, meh.