Unless you really are not at all sociable, chalet holidays are great. You having something in common with everyone - the skiing/boarding.
There is the full spectrum of options from 2 star share the bathroom to 6 star luxury on a par with any hotel.
Working in chalets for 5 seasons I can only recall one dull group (old Etonians), but they were harmless. We also had many, many great groups. Only one nightmare group who decided to dance on the dining table one night so we returned to a table in two pieces the next morning - they had breakfast on the floor!
I've also stayed in chalets as part of mixed groups and never had a problem. The ice gets broken on the first night over drinks and dinner, and the staff will set down certain ground rules to make everyone's stay enjoyable.
