The Iliad.
(If you don't know what that is, look it up. It's a fantastic work; I was bored enough to read it twice, and people like Diomedes (who not only wounded Ares and Aphrodite when they provoked him, but was humble enough to stand down when Apollo asked, unlike Achilles and his boyfriend - yes, I said it - Patroclus), Teucer (whose story during and after the Trojan is sad and triumphant at the same time and is personally my favorite person in the work), Hector (absolutely noble Trojan), Aeneas (he who started the journey to Rome), Agenor (absolutely a brave man to stand up to Achilles when everyone else fled into the gated city of Troy), and Priam (who is much more noble than the Achaeans).
Ajax the Lesser and Odysseus can both burn in hell for what they did, though. Granted Odysseus undergoes major character development in The Odyssey, but he can still burn in hell for throwing Hector's infant son off the ramparts and manipulating Ajax the Great. And Achilles is the biggest passive-aggressive asshole of them all.
EDIT: Maybe it wasn't Odysseus who killed Hector's infant son, but Neoptolemus (Achilles' son) possibly did without hesitation (some say he beat Priam to death with the baby's body), and made the child's mother his concubine. So that definitely makes him the biggest asshole in the whole thing.
