Who wins?
Ali-Frazier vs Yankees-Red Sox
Yankees-Red Sox wins 60% to 40%. 33 more put them in the same row. From Famous Sports Rivalries Tier List. Pick a side.
drunk_moose on Ali-Frazier: the greatest rivalry in boxing history, Fight of the Century at MSG
chunky_wizard on Yankees-Red Sox: the 2004 ALCS and A Rod vs Varitek, peak hatred
Famous Sports Rivalries Tier List: the full ranking