For next year?!?
Taos will definitely have less crowds than Keystone. I don't think you're crazy and the crowds, even at Keystone, are manageable. Christmas falls on a Monday this year, so there will be large crowds on Dec 23/24. Christmas Day itself will be fairly empty.
Why would you want to start planning the trip for next year though? I'd almost wait until next year and follow the snow. Keystone will almost certainly be close to 100% open at Christmas, with Taos it's hard to say. They're a lot more variable in their conditions. Plus, even if you get to Keystone and don't like it you'll have 5 other areas to ski within a 20 minute drive.
Personally, I'd wait to see if somewhere else gets the snow next year. Tahoe, Utah, Mammoth, and southwest Colorado are all known for getting huge early season snows.