Depends on how active you are, I'd do COD for them. The amount you get depends on your build too, my Hansel alt gets double the pots from EB with less actions and it's only 2mil combined.
COD is the best if your clan can knock them out quickly, as well as pots and the shield that drop, you also have a chance of getting a treasure drop, can't remember how much it is in COD, think its around 10bil. FOD treasure is usually around 15.5bil, i'v gotten loads of treasure drops from that.
CoTD. Destroyer sucks at drops and payout in general. Were to CoTD you have good payout. A reasonable among of drops.