http://www.yahoo.com/food/booze-map-of-the-world-crushes-our-spirits-74417073147.html
Although more than half the world prefers whiskey to any other spirit, most Americans belly up to the bar and pick vodka.
It’s possible that vodka drinkers are smarter than our bourbon-loving staffers. Even the worst vodka apparently causes you less horrible hangovers than expensive bourbon.
34% of all spirits consumed in the US is vodka; the next closest is rum, at 13%, followed by whiskey at 10% http://www.usdrinksconference.com/assets/files/agenda/U.S.%20Beverage%20Alcohol%20Trends.pdf