I don't think so at all. Age is catching up with him, and he will lose soon if he keeps fighting. He will lose to somebody he isn't meant to lose to, unless he fights GGG in which I think GGG will win at this point in time.
He's not overrated, he's just getting old. It happens to all the boxers. He beat a pretty good line of Middleweights in the last few years, including giving Chavez Jr. his first loss and also Murray (very close fight though).
Completely agree. For them to be meaningful terms the majority need to disagree with a more perceptive minority. Everyone here seems to think of Martinez in a similar way.
No, he's just old and injured. People want to ding him for all the knock downs, but most of them can be chalked up to the fact that his style puts him off balance so much. I don't hold that against him.