Sazh was the lone bright point in the XIII cast, but I wouldn't consider him a "manly" man, just a man. Sazh cried, he had moments of despair. He almost killed himself. That's not manly, that's cowardly. I appreciate his humanity, and I really do like him, but let's just be honest here.
I would say Auron is the last manly man in the series.