Which two gods are the Greeks greatest allies?

Hera, Zeus' wife is persistent on seeing Troy's defeat. In The Iliad, we see gods clash among mortal men on the battlefield as well as on Olympus. She even offers Zeus to destroy anyone of her cities in replacement for the destruction of Troy. In the Aeneid, Hero is known as Juno and she hated Troy to the extent that she does everything in her power to stop a Trojan to found Rome and create the Roman Empire.

Athena's favourite warrior is Odysseus and we can see her assistnat in The Iliad as well as in The Odyssey. They both share the characteristics of cunning (intelligence)

In Contrast, Apollo and Aphrodite support the Trojans.