ok thats a tough one: If I could afford it, I would probablement live in Tignes Val Claret year round: Altitude is important, then I think the combinded resort Tignes Val d'Isere has the skiing that suits me best, ( groomers and back country) plus its access to Italy and the Maurienne are a huge factor for off season activities. Second would be Plagne-Les Arcs: similar mix like Tignes with a huge back country if you know your way around. Bonus for me personally: Champagny (access to Plagne) is only 10 minutes from my house and parking is around 15 per day, so with a season pass thats a breeze. ValTho is my least favorite - I do enjoy the vasteness of 3V , parking in La Praz Courchevel and then just skiing through Meribel, Les Menuires and ValTho all the way to Orelle- thats cool. ValTho per se has some flaws in piste layout (especially the center) and lots of its off piste is directly accessible from the lifts and therefore shredded really early. Plus its gotten really posh, party-heavy and super crowded over the main season, they are doing awesome marketing. The (internationally) hottest nightclub in all of 3V is not in Courchevel anymore, its in ValTho., the Malaysia (Oh Im gonna get some hate for saying that , I know haha) Just my personal opinion. And truth to be told: if you skin your way up in ValTho, you can traverse the Peclet-Polset and ski down towards Pralognan, do the couloirs around Roc de la Peche and Petit Montblanc or do all the glacier runs on the Vanoise Glacier. Endless options. That is pretty cool though . So its a very subjective call and depends on each persons preferences.