Something I always found interesting was how Ares was portrayed compared to his sister, Athena. Ares is the god of brutal war, flanked by spirits of vengeance, bloodlust, and madness, and yet is at times portrayed as brash and cowardly when struck. Athena, however, is the goddess of tactical warfare, who aids heroes and guides those on their noble quests for Olympus.
What is not as mentioned as often is Ares praise nor Athena's flaws.
Such as when the goddes was duped into a bloody war for the sake of being declared "the fairest of all" or when she transformed Arachne into a spider for portraying the gods as their most human, such as when they attack their charges, humans, either in drunken rage or lust.
Ares, however, did at least one noble thing, though one could argue it was for something as selfish as "vainful pride". When Ares own daughter or priestess was attacked and raped, he either sent or transformed into a wild boar, a creature of his identity, to gore and kill the man who'd attacked her.
It's also interesting as when the Romans adopted the Greek pantheon, Ares into Mars maintained his status as God of War and even rose in the rankings to being second only to Jupiter, while Athena lost her title of Goddess of War upon transfer to Minerva, Goddess of Wisdom.
Pretty interesting when you think about it.