Most importantly, how long is your trip, what level of skier are you, and how important is nightlife?
I'll probably do a 10-day trip, or maybe two full weeks, depending on what package deals I can find. I'm likely going by myself, since the person I was going with changed their mind, and the rest of the people I know don't seem to ski. This means I'll probably be using a hotel, rather than a chalet or apartment. For nightlife, I'm not really looking for all-night partying. I think those days are behind me, and I'm just looking for a good meal, a couple drinks, and maybe some live music--most likely done for the night by midnight (yes, boring).
I've skied for many years, usually at least one trip a year to western US/Canada. While great areas, after many years, I was looking for something different. Plus, since I live in the Boston area, flying to Europe is really no different than flying out west. I can ski most conditions--even though I take trips out west, I grew-up in northern New England (and still ski there on weekends) amongst the much lower elevation White/Green mountains, so I've certainly done my share of skiing on ice, and don't require perfect powder.
My main thing is I have a bad knee that acts-up many times (especially after skiing on ice Dec-Feb), so that usually dictates whether I end-up doing a "cruising-only" trip, avoiding most blacks. Nowadays, I try to plan for places that have good advanced terrain that I can do if my knee permits it, but the important thing is to make sure that there are moderate run-outs and alternate paths available, so I can still get home if my knee blows-out. That was one of the things that concerned me with Val d'Isere, which I was first strongly considering, but someone said there are no moderate run-outs back into town.
Thanks,
michael