depends who you are looking to ski guide for. i've worked in ski resort and there's a distinct difference between ski guides who work from their hotel (ie crystal holidays et al) who are basically just taking guests around the pistes and ski guides who work for a proper ski guide company who will be offering a proffesional service taking skiiers far away from the pistes and into the backcountry.
can't believe that people still argue about whether skiing or boarding is the best. i ride and always have ridden with both. i board myself but it's undeniable that both ski and board industries have learned lots from each other. look at the way ski's have developed since the introduction of snowboards with their progressive sidecuts etc.
oh, and you'll never beat riding through waist deep powder on a board :D (well, maybe a 20 foot wave but i've never achieved that)