2nd week April

I am looking to go to a French ski resort in the second week of April. Any recommendation on where to go for some decent skiing during that time of the year?

High!
High resort and high skiing.
Even though the snow so far has been amazing this season prudence suggests guaranteed snow is essential.

BUT .....

You could leave booking until late March (say) and see what happens.
I'd be thinking of Tignes, Val Thorens, L2A possibly, Val D'Isere, maybe Les Arcs.

I'm sure there a few other really high skiing resorts worth a look but the above I know.
Questions for me would be what sort of skiing are you looking for (level) and does the resort have enough for me at a high level. North facing holds the snow. What do I feel about skiing slush? Personally I have always enjoyed soft, slushy snow but I know some hate it.

For example I skied in Tignes last year at the end of April and what wasn't a brilliant season - only used 5 or 6 lifts all week due to poor conditions but still had plenty of skiing and a great time. And skied to and from the hotel every day.