I've been to pretty well all the resorts mentioned bar Samoens, along with various Italian, Swiss, Austrian and Whistler a couple of times, but that was when I was employed and had money. I'll be going back to the Aosta Valley again this year but no idea where I'll be staying. I'll probably drive over and stay in a combination of friends, hotels, flats, whatever, and that way get to ski various places: Courmayeur, Cervinia, Pila, Crevacol, Monte Rosa, La Thuile. I did a translation job for someone over there and am being paid with one of the resorts' lift pass! Will also have a day ticket to the new Monte Bianco cable car. I keep myself reasonably fit for my age but thanks for reminding me I need to do some more specific strengthening, core and flexibility exercises.
Incidentally, if anyone needs Italian lessons, let me know as I need some extra income: the summer school money has been spent and skiing is an expensive extra!