one piece to the question that i don't know has been addressed is what type of skiing the person likes to do. picking the right ski can depend so much on if the person stays in the trees, the big open runs, groomers, park, or a combination of all. its here that turn radius and swing weight become very important.
people also need to keep in mind that as much as people rip on this brand or that brand, for the most part, skis today are pretty well made, barring a few obviously. there is no "best ski out there," but rather there are a selection of skis to give you the option to pick the one that suits your style of riding. a person who likes turny, surfy, and fun will like Line. a light weight agressive skier will be at home on Armada, while heavier aggressive skiers may prefer ON3P.
so remember when u give advice in this forum, remember you are helping someone else find skis, not every recommendation should be what YOU like, but rather a list of a few good options that would make that person happy. at the end of the day we all want to be happy with our skis and have fun.