One of the greatest rivalries in professional sports history was surely that between the Red Sox and Yankees from 2003 to 2011. They were the best teams in baseball many of those years. They participated in two of the greatest playoff series of all time. They brawled. They fought over free agents. The Yankees were generally slightly better, but the Red Sox still triumphed in two World Series. They were like the United States and the Soviet Union in the Cold War. But, now, as then, we have a winner.