I'm cooking this year, so I get to decide.
Starter: I shall be digging out the smoker this weekend to do my own smoked salmon blini. I'm going for a mix of apple wood and oak chips (pre-soaked), with a 75:25 ratio of salt to sugar. Serve with buckwheat pancakes, creme fraiche and dill. And a glass of champagne. Non-vintage this year - money's tight...
Main: haunch of venison, boned, rolled and wrapped with unsmoked streaky bacon. I'll tuck some herbs under the bacon, and roast it rare.. I'll make a gravy with some stock, meat juices, juniper, port and Cumberland sauce. Served with pomme dauphinois (made in advance). A good, fruity pinot noir will work well here.
Pudding: Christmas pudding made by my mother-in-law. Proper custard, and some more champagne - sweet wines don't work with Christmas pud in my opinion.
Cheese and Port if anyone can manage it.
I then intend to get hideously drunk whilst everyone else is clearing up.