The birth order goes: Aphrodite? Hestia, Demeter, Hera, Hades, Poseidon, Zeus, Aphrodite?, Hephaestu/os, Athena, Ares, Artemis, Apollo/n, Hermes, Dionysu/os! Hades is not considered an Olympian deity as he resides in the underworld with his wife Persephone, daughter of Demeter, and if we included Persephone on the list we would also add minor deities, nymphs, mountain gods and some "gods" such as Hyacinthus and Britomartis who could be considered gods by much earlier cults, civiliazations and poets. (my hand aches) :_(
