depending on how hard she skis, either the line celebrity or prophet 90 would work well. my girlfriend picked up a pair of prophet 90s for her do-everything ski last year and loves them. also, if you're looking to go the non-twin route, the k2 lotta luv would work pretty well too. super easy to ski, but still rips when you push it, and it's wide enough that it will work for most inbounds pow skiing.