Hades: Hades was feared due to being the god of the Underworld, Lord of the Dead — so that obviously made Hades powerful because no Greek defied Hades — you had the ones that defied Zeus but I don't believe Hades had much opposition and why? Humans fear death. read more
Hierarchies change in all mythologies. The first great Greek gods that emerged from ‘Chaos’ (the equivalent of the ‘void’ in the Bible) were Gaea (earth), Tartarus (underworld) and Eros (love). read more
People generally think of Poseidon as the god of the sea, and the sea was considered one of the most powerful things in ancient Greece. Poseidon was, however, originally the god of horses, caves, and underground water sources--and earthquakes. read more