Where I’m at in NC, I primarily hunt divers but make sure to get out for puddle ducks a few times every year. Both types are generally hanging out in salt or brackish water areas and I can’t tell a huge difference in flavor. Wood ducks and puddle ducks that I shoot further inland and have primarily been in fresh water taste noticeably different. Most can be made edible though, for stronger smelling ducks I usually do something like a barbacoa or shredded BBQ where they get brined and then combined with other strong flavors, even works for sea ducks and snow geese.