From the things he does, yes. But before he does that, no. He is an entirely different hero than dovahkiin. That is my point. He is a normal mortal, unlike dovahkiin. He is a no-one, who by his actions became a champion. Martin, however, is the true hero of oblivion. We are his followers as the champions of cyrodiil. Yes, we have done some amazing things before that moment, but we aren't the hero in the same way the dovahkiin is. You cannot deny that.
Without CoC, Martin would've been killed. Martin is just an Emperor. He wasn't made for fighting, wasn't made for anything EXCEPT for doing the sacrifice that he had done; that was his destiny.... The CoC, from the day s/he was born, is a Hero. It is his destiny. And don't compare CoC to the Dragonborn because each Hero is different for their own destiny. Remember, the Elder Scrolls foretold each of these events and the Hero who is needed for these events. The CoC was in the Elder Scrolls when it foretold the Oblivion Crisis.
The truth is, CoC is a Hero. No doubts about it. Saying he is not is by far the stupidest thing I've ever seen an Elder Scrolls Fan said. It is, no joke.
So basicly, The CoC is a Hero and always been a Hero. It was his destiny to help Martin and defeat Dagon. It was him who stopped the Oblivion Crisis, not Martin. Martin, sadly to say, was just a tool to used to stop it except the 'tool broke' after being used.