Agree with everything above but I still like some divers. Cans, redheads and ringnecks are better than scaup IMO. Bufflehead generally get a pass ,but I shot a couple last year. Honestly, a lot of people don't know how to cook ducks, I shot 200 of them a year for a long time never enjoying it much. I just used recipes that covered up the taste. Of the puddle ducks we commonly shoot in the IV I have a mental ranking of pintail, green wing teal, wigeon, mallards, gadwall, cinnamon teal...................shovelers. With that said I'll shoot mallards over any of the others and gadwall instead of teal.
In general the whiter the fat the better the bird, more orange the worse.