In much of the pulp stories that inspired D&D it's warrior heroes were highly accomplished men, but still limted to just above-average human skill. Yet in certain works of modern fiction and ancient mythology, I'm looking you Irish Myths there are quitre a few warriors with superhuman skill and ability. Perhaps this is an innate power that took time developing with in the hero or is the result of intense training and bestowment. From Captain America to Cu Chulainn these combatants are great physical powerhouses, practically gods amung men. So the question is this, what are your limits for fantasy heroes? Are they at most more like heroes from the old pulps, such as the great Conan or those of Irish Myth, namely
Cu Chulainn? There are no wrong answers for this one, it's all just a matter of opinion.