The Ranger & Nova are both good guns, mechanically speaking. The reason she liked those 2 are probobly because she shouldered them well and they seemed to fit her better than other shotguns she held. That being said, SHE is going to most likely shoot the gun SHE is most comfortable with more easily.

Now, $$$? That's another topic. beings she seems to just be getting into it, you might want to go with the lower cost.