If you're just looking to get her into the sport, and might upgrade in the future. You'll get better resale out of the Edge.
Every one started making those extreme adjustable bows in the last year or two, but the Edge has been on the market the longest, and has made a name for itself.
IMHO - If she's some what hesitent on getting into the sport, I would just get her what ever her little heart desires to peak her interest even more.
Good luck !