[COD] What's your favourite and least favourite COD overall?

Maybe this will see which Cod Reddit loves most.

My favourite is Advanced Warfare and least favourite is BO3.

BO2 was my favourite until games were pure mods, and I hate BO3 so much because there's more DLC weapons than normal weapons, and they completely ruined Zombies by remastering old maps but adding new perks and guns into them.