Who is the greatest hero of The Lord of the Ring?

I would have to go with Sam because he is loyal trustworthy and he has a sense of leadership about him.Also he knew what he had to do when Frodo was taken by the Orks after he was hurt by Shelob.He knew that Frodo would trust him and that the ring had to be desroyed. He also knew that it was up to him and if he didn't find a way the Dark Lord would get the ring.