Could light beer brands sniping at each other simply be turning drinkers off to all of them? Quite possibly, though, funny enough, the brand hurting the most during the four weeks ending Feb. 16 is — yup, you guessed it — Bud Light, down 7.7 percent. (Coors Light was down 5.8 in the period, and Miller Lite was down 1.2 percent.)