Oh , I wandered on here thinking it would be about "What's the best cake recipe"? (Delia with some amendments)
"Where's the best place to buy meat to make a delicious steak pie for the non-vegetarians? Supermarket or freeze your nuts off queuing outside the butchers for an hour"?
Not going out/having a takeaway for me 
My No1 Best Buy Christmas Food is Sainsburys Taste the Difference Mini Mince Pies. Not the big ones. Not any other brand. I can do pastry but for some obscure reason, Mince Pies never work for me
If you want a Bung It In The Oven and Get Sloshed Meal, why not look at "Cook" (there was a post earlier about them, it does look nice .......)
I wouldn't fancy a Christmas Dinner out , though my DDad always says by the time you've bought it all, cooked it all, the time and fuel involved, you might as well go out?
But then he wouldn't get to eat the lovely steak pie I make, and, being a long term vegetarian, 'tis a Labour of Love 