From Vail to Jackson Hole, America’s top ski destinations offer travelers wide open spaces and crisp, clean air—as well as cozy lodges and glamorous resorts to return home to after a day on the mountain. As a growing number of destinations move towards multi-mountain passes that give access to a wide reach of terrain, it’s helpful to understand the differences between the best places to ski in the U.S. Whether you’re traveling with bunny-slope beginners or double black diamond experts, après-ski...