Family relations are also common. Since Zeus is Ares' father, their relationship as father - son can be a central theme. It could be about love, conflict, or the passing on of power and wisdom within the family unit. Another aspect is the theme of war and peace. Ares is the god of war and Zeus has to maintain order, so their interactions can be related to whether to start a war or keep the peace.
One great Ares and Zeus fanfic is 'The Rivalry of Gods' which delves into their power struggles. It shows how their different personalities, with Ares being more war - hungry and Zeus more concerned with overall rule, clash in a series of events. The author does a wonderful job of creating a vivid world within the framework of Greek mythology.
To develop Ares, show his internal conflict. He's the god of war, but he could have moments of doubt about the destruction he causes. For example, after a particularly bloody battle, he might question if war is always the answer.
The story of Zeus is filled with tales of his battles, his love affairs, and his role in shaping the fate of humans and gods. He's a central figure in Greek myths, often depicted as a powerful and sometimes unpredictable deity.
Zeus is considered fictional. Greek mythology, where Zeus features prominently, is a collection of stories and beliefs passed down through generations rather than representing actual historical facts. These myths were often used to explain natural phenomena or convey moral and cultural values.