By Daniel Kline McDonald’s and Burger King have gone to war over menu items, but this is bigger than the Whopper versus the Big Mac. Burger King and McDonald’s (MCD) – Get McDonald’s Corporation Report are not one and two in the United States burger wars anymore. Wendy’s (WEN) – Get Wendy’s Company Report actually lays claim to the second spot, but the Home of the Whopper and the Golden Arches have a legendary rivalry tracing back to their earliest days. The Big Mac was an answer to The Whopper, and both chains have essentially traded haymakers as they try to innovate in search of fast food ne…