In order which Call of duties would be your top 3

1. Call of Duty: World at War
   
2. Call of Duty: Black Ops
   
3. Call of Duty: Advanced Warfare
   

The reason World at War is so high is that it was the only WWII version of Call of Duty that managed to give a good mix between realism and fiction. Black Ops and Advanced Warfare are on the list for the same reason, they hold some of the best stories in all the Call of Duty games to-date,