now on topic; if you make a thread and expect serious questions, you should start with posing a serious question....
asking what pow ski is best for a person that's 5ft10 is like asking what's the best car for a dark haired person.... it's a dumb question..
if you don't give us some more information like your weight, your skiing level, your preferred style/spot on the mountain; do you want to shred pillow lines, straightline steep lines, drop cliffs, toy around in the trees, ski crud, whatever, tell us what you expect to do with the ski...
will you also be using it on the groomers or variable snow, or is it gonna be a strict powder tool for the deep days?
tell us whatever you expect from the ski!