I haven't been yet this year but we will be arriving tomorrow. From years past some of my favorites include:
Lamb Slider - New Zealand (don't know about the combo they have this year though)
Grilled Lamb Chop, Shrimp - Australia
Beef Empanada & Beef Skewer - Argentina
Everything at the Ireland Booth
Cheddar Cheese Soup - Canada
Waffle - Belgium
Sausage in Pretzel Roll & Apple Strudel - Germany.
Most of the items aren't big enough for more than 2 people to share. The dessert trio could probably be shared by 6 if each item was split between two. I personally usually avoid the Asian booths as I don't care for that type of food.
This year I'm looking forward to trying some of the new items such as the Coq au Vin, Pastel de Nata, Cheese Fondue, both Taco's in Mexico, this year's Dessert Trio and the Pumpkin Mousse. I'll probably try some of the other new items too but I try to avoid the spicy stuff, raw fish & salmon. I may try the new Lobster offerings. I would have liked to try the combo in Scandinavia but not with the herring, maybe I'll get the Swedish Meatball. Portugal I'll probably just try one or two of the wines with the pastry as neither of the food items seem appealing to me. Not sure about Morocco. I liked the lemon chicken dish they used to offer, not big on the Pita Pockets. And the Cheese thing in Greece sounds interesting.