In reply to HeMa:
> or the best... liftserved offpiste .
> Indeed, what kind of skiing the OP is after, will greatly affect the recommendations.
> But as a general idea, more often than not smaller resorts often end up offering a better ski-experience... if the conditions are right. Small resort quite often also means limited terrain, and thus often limited crowds. So if you catch them when the conditions are right, you can lap the pow in the trees all alone (or rip the perfectly groomed piste to your hearts content). I've done just that in Italy and also Swissy...
Not a skier, but this ^^. I spend a fair bit of time in the Bavarian / Tyrolean alps and there's a lot of what I call "local's resorts" that your average UK skier has never heard of - single chairlift or small gondola to a hut, maybe a couple of drags, a couple of pistes and a 'skiroute' - unmaintained / unpatrolled 'piste'. Often more popular in summer with walkers or paragliders than skiers. They're too small to be a ski holiday destination in their own right, but get used by locals who will do a day trip. Many ski touring routes start from these places. Lots of stuff in the trees and just above. The only downside is that they're often at low altitude (<1500m) and can suffer from lack of snow - most were closed 2 weeks ago in the Allgau. With a van you could hit a lot of these places and have a great time when they're 'in'. Googlemaps is the place to look to find the lifts and work from there.
Be careful with location and day though - at weekends hordes of Germans head south from Munich / Ulm / Augsburg on the motorways and places can get busy. During the week things are much more relaxed.
> For pure touring, get maps and guidebooks .
The newer DAV maps have ski touring and snowshoeing routes marked on them now . I suspect German language guidebooks would be the best place to look. Globetrotter.de would be a good place to see what's out there (although they won't ship to the UK )