In reply to idiotproof (Buxton MC):
As no one else has chipped in.
Iglusk.com is quite a good aggregator of option. I would fix a budget and try and fit to that otherwise your question is a bit of a needle in a haystack.
As for the rest, you could narrow it by 'big ski area' to one of the 'big ski areas' - Trois Vallees, Val D'isere/Tignes, Sella Ronda (depending on time of year, less snow sure).
Then look at cheaper options within those areas - these will often come with a 'character/atmosphere' trade off relative to the more expensive, and sometimes have poorer access to the skiing (some of the lower Trois Vallees resorts).
Anyway, hope that's a bit of a help.