In terms of looks I'm giving the the award to Chaos and Adrammelech. However, in terms of how they fare in battle, I would give the award to Cúchulainn. Because he doesn't die easily, he can cure himself, and he actually attacks the enemy. This is in comparison to the Espers that I already have, which are: Belias, Mateus, Adrammelech, Exodus, Cuchulainn, Zalera, and Zeromus.