In ancient Greek mythology, the twelve Olympian gods were considered the principal deities and the most powerful among the gods and goddesses.

Of these twelve Olympians, the three top gods, often considered as the most powerful and important were:

1. Zeus: The king of the gods, ruler of Mount Olympus and the god of the sky, weather, fate and law. He is considered the most powerful of all the Olympian gods, and his power and authority were unquestioned. He was also considered the father of many other gods, demi-gods, and heroes.

2. Athena: The goddess of wisdom, warfare, and crafts. She was the patron goddess of the city of Athens and was considered one of the most intelligent and strategic of the Olympian gods. She was also known for her tactical prowess in battles and often advised other Olympians.

3. Apollo: The god of music, poetry, prophecy, and the sun. He was considered one of the most handsome and accomplished of the Olympian gods. He was also known as the god of oracles and was associated with many religious cults and prophecy. He was also considered one of the most powerful in terms of knowledge and wisdom.

It's worth noting that this is a subjective list and other gods such as Poseidon, Demeter and Hermes could also be included in such a list. The ranking of the gods also varied depending on the city-state and the region.

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