One point of evidence proving that Odysseus was the most heroic was that even though he had other journeys he fought in the Trojan War (The Odysseus Play). In most cases the hero only helps himself on his goal but, in this one he also helped the Greeks defeat the Trojans. Accomplishing not only the defeat of a culture but also starting his trip home after the war finished.
One point of evidence proving that Odysseus was the most heroic was that even though he had other journeys he fought in the Trojan War (The Odysseus Play). In most cases the hero only helps himself on his goal but, in this one he also helped the Greeks defeat the Trojans. Accomplishing not only the defeat of a culture but also starting his trip home after the war finished.