#1: Female instructors, but only if they're amazing. I love skiing with my male instructors, and I learn a ton, but there's something about seeing a woman huck a cliff - especially if she looks a bit like me, ie, not dainty - or shred a steep line that makes me think, hey, she's a woman and she can do it - surely I can do it, too! It's faulty logic, but it really does inspire me. It makes it feel possible in a way that seeing men ski the same way never does. (Obviously this applies mostly to higher-level skiing clinics where these things are in reach - I do remember one class when I was not terribly high level and the instructor, a male, was throwing 360s at every opportunity while having us practice carving drills on blues and greens. It was really annoying.)
Other comments:
Video review is awesome. Not just capturing video, but then reviewing each person's skiing as a group.
I like the fact that the Dirt Series (women's mountain biking clinics) asks: if you don't fit perfectly into one group or another, would you rather be in the more moderate or the more challenging group?
I almost feel like ski lessons require a personality review ahead of time. The best technical instruction requires dropping down to easier terrain, which can be frustrating for someone who just plopped down $$$$. On the other hand, some people have good technical skills, but need tactics for steeps, trees etc. (These can still benefit from easier terrain, but the connection is more obvious in the actual terrain.) And then there are people who have all of that, but they need the confidence to actually use all that when it gets to intimidating terrain.