As someone who worked in the industry I think honestly transfer time from the airport should be your lowest consideration. I do understand babies/young kids can make it more important. It's also more important if you're just going for a long weekend as well but for your regular week long trip I think resort itself is far more important than journey time. The northern alps resorts closer for transfers, are to be honest just not the same caliber in terms of size, lift infrastructure and piste quality as the resorts in the Tarentaise Valley (3valleys, Paradiski, La Rosiere, Val D and Tignes) or the Southern Alps (Alpe D'Huez, Les 2 Arcs). Notable exception for Morzine/Avoriaz as being the standout northern ski area. People talk a lot about Chamonix too. The truth with Chamonix though is its more of an offpiste resort. Yes ofc it has pistes but fewer and less variation than the resorts I mention above. Chamonix is fantastic if you're a high level skiier, confident offpiste and have good fresh snow. Otherwise it is distinctly mid tier. Not to mention you need to use the bus to get around some of the areas.
Even the shortest transfer resorts can be subject to huge traffic delays on the wrong weekend e.g. if the French decide to protest which they like to do often!
