well im 5 foot 5 and 110 pounds, and i got the ar6s in the 166. i was also looking at volkl walls too. i went with the ar6 because i wanted a softer ski for rails and jibbing around the mountain and a non symetrical ski fitted me better because i ski half park and half just cruising groomers...
i havent gotten a chance to ski my ar6s yet, but i can tell you that hand flexing them, they feel like they are going to be really stiff for someone my size to butter easily, so i kindve have some regrets getting them. so if you want a ski that will be fun and playful for our size, yet will still be okay to great at everything else look in to the armada thall, armada alpha 2, still possibly the ar6 because i may be incorrect, the liberty LTEs, line anthem, line invader, atomic punx, k2 disordorly (the 2009/2010 feel really poppy and extremely soft) and some others that i cant think of right now.