The beverage industry's second-biggest name is the more promising investment prospect. It's not just one of the world's best-known brand names. Coca-Cola (KO -0.41%) has also been -- and continues to be -- one of the world's more rewarding investments. Plenty of buy-and-hold investors have become millionaires while sitting on a long-term stake in Coca-Cola stock, well-rewarded for their patience. The biggest name in the beverage business, however, isn't the company behind the industry's most rewarding stock ...