Most of the DLC missions outside of Valley of the Yeti are forgettable at best. I didn't get the harpoon gun until I had pretty much beaten the game. Valley of the Yeti is pretty good, a bit repetitive, but definitely help extends the Far Cry 4 experience.
GOTY: Battlefield 1 - still have so much to do in the Campaign, but I can't deny a round or two online. I just started AC: Origins and that would be my GOTY if I had more time with it.
Enjoyed Far Cry 4 for the second time, got trapped up in Fallout Shelter and playing Minecraft with my niece...