I guess you might expect a blogger of a Ski Christmas blog to suggest this is a great time to ski, but it is true, particularly if you are based in the UK! Lets start with the UK element, a Christmas skiing holiday enables you to getaway from that pre-Christmas madness and spend so time relaxing in a really idyllic Christmas location where the streets are snowy and white, and everybody seems to have stopped to actually celebrate the Christmas holiday, rather than get stressed by it!
And if you have children, a family ski Christmas holiday allows the children to enjoy a traditional Christmas landscape, but focus on much more than just Christmas Day itself. Yes there will be Santa, but there will also be skiing to take much of the energy out of them!
And on the day, if you have booked a luxury catered chalet, there will of course be the Christmas tree and decorations, but breakfast will be prepared for you, as will the traditional Christmas Dinner, and better still, no one has to peel the sprouts or clear up afterwards.
Finally, as for the snow, in my personal experience some of the best skiing and snow has been the Christmas ski week. Why, well it typically dumps and dumps November and December, few people have then skied the weeks before Christmas, leaving the perfect snow to practice perfect S's!