Depends on what you want to go for, I’m assuming you’re asking about skiing/boarding rather than cycling.
Sorry but Pas de la Casa is not higher than places in France. And from experience it can be hit and miss with the snow. When theres powder in Andorra its good, but too much sun and the pistes turn to ice.
As already posted, Val Thorens is higher 2300m, however its a concrete jungle, but out of all the surrounding resorts one of the cheapest, and has many miles of runs, especially if you get the 3 valleys pass. Though to get to Courchevel and back can be abit of a mission before all the lifts close. Therefore, although lower Meribel or Mottaret are ideal locations for the 3 valleys.
However up the road you also have les Arcs/la Plange (upto 1950m) very good gor boarding, some lovely runs.
But IMHO the creme de la creme would have to be Tignes/Val D’isere, Val D’isere is a bit more upmarket than Tignes, if you want the altitude, then Val Claret just up from Tignes is at 2200m. However, I wouldn’t recommend Tignes/Val for beginners. When theres snow, pure offpiste heaven.
Already looking forward to the snow.