Well I wish I had the luxury of going a little later in the year. But I had PTO to burn so I will be going over christmas. Dec 23-31. I am a regular at Devils head in Wisconsin. So as long as it is over 1000 feet tall I think it will probably be a great experience haha
Never been to Devil's Head, but if it's anything like Tyrol Basin or Cascade, you'll be in awe when you come out here, even in mid December. A-Bay should be a good choice for that exact week, because the other resorts will likely be absolute zoos.
My first trip out here was spring 2012 and I had a blast, even though it was one of the worst winters CO had seen in awhile. You'll have a great time I'm sure.