In the gear world, the word versatile is supposed to connote “deft” and “multitalented.” It’s overused to the point of cliché, but it’s also a totally accurate description of the new allmountain skis. Finally, after decades of R&D, you can buy one pair of boards—not too fat, not too skinny, not too carvy, not too buttery— to replace a garageful of overly specialized confusion. In fact, the options are so adroit, we had to rethink our Snowbird, Utah, test. When a powder ski can rip a beautiful GS turn, it’s no longer just a powder ski. So, too, with a frontside ski that shralps a breakfast of hardpack and floats through the afternoon dump. Thus the simple premise behind what follows: buy the width you need for your favorite (or…