Has anyone seen the Deadliest Warrior?
When they do tests on the warrior's weapons and skill, they compare them to the opposing warrior in each episode. Also they determine the warriors X-factors. Examples like how the warrior performs on different terrain, how well the warrior fare with his or her allies, how tired he or she is when using a weapon, or if they care about who they attack.
If you guys know more about how there X-factors, go ahead and explain it.