and maybe rule out Sunapee as the learning terrain mentioned is really nice but separate from the main mountain, so won't have that big mountain feel. (I've been to both of those and the others mentioned, except for Bretton Woods.)
The problem with keeping her on the main mountain is that you run into Every-Run-Is-Blue-At-Top steepness profile of glaciated valleys. And speeder conflicts/ filtering at the bottom.
Anyway, I'm not sure it's worth the drive for a big mountain feel, but how about NY places, like Plattekill say?