No contest. Talent:GM, Vocal range: GM, awards:GM, ability to thrive as a solo artist: GM, duets: GM, ability to sell out venues all over the world:GM. Simon and his band may have been the shizzle back in the day, but now they play Walmart parking lots. GM has sold out concerts, and despite all his scandals, still remains a musical icon. Say what you will about him, but GM is the winner of this battle royal. End. Of. Story.