Regarding Hector as Hero Antagonist: Some (this is not a majority view, AFAIK) scholars believe the "original" Iliad was wholly or in part composed by a Trojan and either Hellenized by the author himself (in which case they assume he was a Trojan captive or hostage in Greece, based on a possible etymology of the name/title Homer) or Hellenized by the Greeks at a later time. If this is the case, it would of course help explain why the "antagonist" Hector seems like the real hero, while most of the Greeks (including, or even especially, Achilles) come across as bloodthirsty savages "burning Rome". Either that, or it could simply be that the ancient Greeks thought bloodthirsty savagery was perfectly acceptable, even admirable, as long as the Greeks won.
I removed this example for not describing a trope found in the Iliad. The Iliad is not a Twice-Told Tale. The example of Twice-Told Tale must go to those other works which tell the events of the Trojan War from the Trojan women's perspective.