Guy walks into a bar, orders a 12-ounce bottle of Corona Extra. Another guy walks in, orders a 12-ounce Guinness draft. Whose drink is healthier? If the guidelines are less alcohol, fewer calories, fewer carbohydrates and, to top it off, protection against heart attacks and blindness, it's the Guinness drinker, hands down. No joke. Guinness, in fact, is lower in alcohol, calories and carbohydrates than Samuel Adams, Budweiser, Heineken and almost every other major-brand beer not classified as light or low-carb. It has fewer calories and carbohydrates than low-fat milk and orange juice. Could this be the same Irish stout...