Compare and contrast the characteristics of monsters and heroes

These two come always as adversaries in pieces of literature. Consequently, they show positive and negative characteristics in constant fight, heroes for their fight to do good, monsters for doing evil. Either heroes and monsters are endowed with overpowers to create unique atmosphere of forces fighting against each other that result in the victory of the heroes most of the time. The good almost all of the time wins, while the monsters lose even their last battle with life.