Verbier is great for skiing. it's expensive and exclusive but not flashy or nouveau riche. it was a well kept secret until a few years ago.
Well, I don't ski and I never was there but all our new rich people (not very educated or classy) go there on holiday. It is a must. But maybe they blend there very well. I don't know. But seeing them I know I prefer people who go on vacation in places less known.
OK, I have to say, I LOVE Verbier.. but nerver have been in Lech. I think Verbier is more glamourous and the mountains (Mont Fort) are splentit (also the clubs