I think the best food will be Nog's Nog. It's a damage buff and everyone loves more DPS. It will probably be the best selling food on the exchange. Probably will stock up on those.
Yeah, that part of the reason I asked what was "best". Sure all the food items will make winter tribbles but nogs nog might even be worth more because of players actually wanting to use the boost on their toons.
I think nogs nog takes more stuff to make but may be worth it. Again its quality vs quantity here.