re: Who leaves behind a more memorable legacy, AJ McCarron or Johnny Manziel?

Exactly. People from all over the country would tune in to see what kind of Houdini shite JFF was going to pull each week. Nobody really cared to see AJ throw to wide open receivers because opponents had sold their souls to stop Alabama's run game. Not to knock AJ. He did everything that was asked of him in Saban's system exceptionally well, but there was nothing really exciting about it.