I'm not sure how many times I've heard the debate on sports talk radio, or seen it on web slideshows: Who's the best player who's never won a championship? Barry Bonds? Ted Williams? Dan Marino? Karl Malone? Charles Barkley? Patrick Ewing? It's an irresistible topic because it feels like greatness unfulfilled: Otherworldly talent, combined with decades of devotion to one's craft … all falling just short. These men are seen almost as tragic figures, genius denied.