Yo, I'm going Pal - Arinsal in jan with Neilson. Managed to get flight to toulouse accom for the week and transfer for £150pp ski/boot hire and lift pass for an extra 150 (which you can apparently use on grand vilara and val nord areas)
Pal - Arinsal is defo the quieter of the resorts and more suitable for beginners judging by the piste maps but at £300 each, who's complaining??
I did Pas de la casa 3 years back and had a fantastic time!! the neilson reps really looked after us and came out drinking too. It was so easy to go out and meet people in the underground bar (i was with my dad and younger bro so had to go solo at night) and everyone was really friendly. Defo a good time to be had in Pas!!