I'm not a skier but have stopped at the Montgenevre aire a few times as it's our preferred crossing point into Italy. It's not only huge but the service point is also fully winterised, based around an insulated wooden hut. It's a little way out of town but not beyond walking distance. There's a few hairpins on the last bit between Briançon and Montgenevre but the road is of our 'A' road quality and large trucks use it. The road up from the Italian side at Claviere is better, but you'd have to take the Frejus tunnel to Oulx, which would add to your costs.Montgenevre has a massive aire (280 places) next to the slopes. 10 Euro / day including EHU. Haven't stayed on it but I've been to the resort for the past 6 six years and look at the aire with envy as a pass over it in the chair lift. Montgenevre is a good intermediate resort with ski schools and lots of "beginner friendly" runs.