Hector versus Achilles, my take.
So, before Achilles chops Hector's spear in half, Achilles keeps Hector rather firmly on the defensive, getting 7-8 attacks before Hector even gets a single one (Hector is left backpedalling, staggering, and blocking the entire time). After that, Hector continues to be forced on the defensive, with Achilles getting 2-3 attacks for each of Hector's. Hector manages to trap Achilles' spear, to which Achilles' response is to destroy Hector's spear.
Frankly, Hector - who is Troy's best, really - is coming off looking REALLY second best.
Hector TRIES to shove Achilles away with his shield; Achilles resists, pushes back, and sends Hector staggering away.
There's a nice scene where Hector manages to disarm Achilles (gotta be fair) after suffering through another three attacks, then goes after an unarmed Achilles with his sword. Achilles goes on the defensive, gets his own sword out (doing stuff like 'Actively blocking attacks by using his shin armor'), and then proceeds to immediately force Hector away, getting (again) two-three attacks for every one of Hector's and sending him staggering by
stabbing his shield with his shortsword.
Achilles is quite clearly dominating Hector at this point. Not only is he far stronger, but he's managing to continuously force Hector onto the defensive from the get-go.
We see some more fighting with the swords, Achilles doing stuff like 'Parry behind my back' and 'Parry with my greaves, again' (which Hector does not manage at any time). In fact, he closes at one point, interrupting Hector's attack by elbowing him in the face.
There is one point where Hector goes on the offensive, managing to get three attacks in while forcing Achilles back, and clips Achilles' armor. Achilles then ties up his sword and kicks him the shield hard enough to knock him down.
They go at it with Hector using two weapons - sword and broken spear - and Achilles tossing away his shield to fight only with sword. Achilles basically dances around Hector at this point, avoiding all of his attacks. Hector charges in swinging, Achilles deflects all of his attacks then uses his open palm to just shove him back (if he could do that, he could likely have also just stuck his sword in Hector's face).
The next time Hector tries this, Achilles basically disarms him of the spear - casually, with one hand - and sticks it back straight through Hector's armor.
For me, the entire fight is 'Hector is outclassed in skill, strength, and yeah, endurance.'
Mileage may vary.