What flavour of riding? (or if with a company, who?) Les Arcs is pretty mixed. Our group punctured the **** our of everything on the first day but I think that was just a) mostly XC tyres and b) not enough air. I didn’t really feel it was harder on tyres than my UK riding, but then there could be tyre-murdering minefields I didn’t see.
TBH Barons wouldn’t be my choice… The sidewalls aren’t very tough, only black mark on an otherwise brilliant tyre. Mine are fraying up just from normal everyday riding, the sidewalls will be dead long before the tread, none too chuffed. And they’re a wee bit mud-oriented, sure it does rain in the alps but I went with more of a mud-capable allrounder.
I went with Specialized SX-carcasses… sort of ply-and-a-half, very tough but not as hefty as dualply. Think I was the only one in our group not to flat in a week in the area, and yep that includes the guides 🙂 Used ’em for UK downhill as well, no bother. Oh and relatively cheap! Will be using them again this year.