Hmm, tough one, I will say this, You did say the word "versitile", so my thought is that the Rf will allow here to shift the binding to adjust for conditions. You can always leave them forward for 90% of skiing, especially if she's aggressive and race/carve oriented but yo can't sfit them to neutral in crud or moderate powder with the FF. I don't know if she would really be missing anything with the RF over the FF, Final comment, go for the RF.