Burger King is having a whopper of a year financially, while McDonald’s investors are hankering for improved performance. Shares of Burger King have gained an impressive 16.3% in 2014 compared to a 1.92% decline for McDonald’s. The home of the Whopper has fallen into the good graces of Wall Street as a result of strengthening U.S. same-restaurant sales and consistent gains in international markets. Burger King's winning ways were on display in the second quarter, as sales increased in all of the company's geographic regions and earnings beat Wall Street expectations by 2 cents a share. So which fast-food chain is winning the burger wars? TheStreet's Brian Sozzi shares the numbers you need to know.