Call it the Tiger Woods–Roger Federer debate, Winter Olympics–style. On Wednesday, the two most heavily hyped Americans in the Vancouver Olympic Games, skier Lindsey Vonn and half-pipe snowboarder Shaun White, lived up to the billing and dominated their respective events, winning two golds. Like Woods in golf and Federer in tennis, they’re both transcendent talents who have set the standards of greatness in their sports … Details