How busy is Alpe d'Huez in February?

Due to having children at school, we must take our main ski holiday at
half-term. So we aim to find resorts that are not going to be too
busy. We drive there, and stay in apartments.

This year we skied in Alpe d'Huez at Easter, and the crowds were not
too bad. The ski area was pretty enjoyable (much better than I
remember from the last time I was there, in 1995). Can anyone advise
how crowded it gets during the February half-term week? As a point of
comparison, I consider Flaine to be fairly uncrowded (except this
year, when due to lack of snow everyone from Samoens/Les Carroz/
Morillon descended on the place!).

Any other ski resorts within driving distance of the UK that are (i)
uncrowded, (ii) reasonably snow-sure, (iii) have apartments
conveniently located for the slopes?