My family and I had a wonderful dinner there last April, the food was delicious. It was our first time there and one of our favorite meals that trip. It is a must do again whenever we get there!!!
If the menu appeals to you, I think Artist Point is a fantastic choice for Christmas. Wilderness Lodge is decorated so beautifully for the holidays - it's one of my favorite spots to visit around Christmas. Artist Point has wonderful food and a lovely atmosphere - I would highly recommend it.
Artist Point definitely fits the bill. Jiko would be a great choice, as wood Citricos or bluezoo. All are nice, quieter dinners, with great food and drink choices and good service. Check out the menus and see which cuisine fits the bill for you - I think you'd be happy with any of these choices.