No personal experience with the Woodland edition, but the likely reason for the lower MPG rating is that the Woodland comes with Falken Wildpeak Trail tires, which are fairly knobby (and soft) compared to the various mediocre all-seasons that come on the other trims. Whether the additional snow / gravel / mud performance of a light all-season tire like the Wildpeak Trails is worth the potential MPG hit is up to you, but my experience with Wildpeaks is that they are excellent tires and when the factory Dunlops on mine wear out, Wildpeak Trails are likely to be what I install in their place.