You guys suck! The dos and don'ts of comparative advertising

The fast-food industry is waging a chicken sandwich war. Bud Light and Coors Light are embroiled in “corngate.” And Kind and Cliff keep trading shots in a snack-bar skirmish over whose ingredients are healthier. These are among the many brand battles raging in what has become a feisty, attack-ridden marketing environment.While comparative advertising is a tried-and-true tactic, more brands are going at each other’s throats in an attempt to stand out in the increa