Automedon's charging the Trojan lines and then going head to head with Hector for a brief time, and comes out alive.
Menelaus, who is described as being the weakest warrior of the Greek kings and yet pulls off some of the most courageous actions.
Diomedes goes on a rampage through the trojan army, killing everyone he comes across, wounding Aphrodite and Ares, forcing the God of War to flee from him. He killed multiple Amazon and Trojan Princes, as well as manage to steal holy artifact by sneaking into Troy. The Trojans fear him more than ACHILLES (though considering the fact that he stay in his tent for half the war probably factor into that), the only person who he couldn't defeat was Hector the Greatest Trojan warrior, and it was a stalemate.
Helen standing up to Aphrodite. Even if Aphrodite threatens her into submission immediately after, it's nice to see someone in Greek mythology tell a god what a jerk she is.
Hector fighting Achilles. The best-known duel in all of Western literature.