I think we can all agree on the last two.
As for the hens... The forum has been through this one before and anyone who has been around knows where I stand.
If a pair comes in, I would always try for the drake first. But on a slower day, I will never be choosy and will NEVER look down upon someone else legally shooting a hen.
You would have to have some very productive days to make any impact by shooting hens and if you are having those kinds of days... there should be no reason to even shoot a hen!
**Keep in mind I average 30 ducks a season (yeah, big deal) and do more than my fair share of crow/predator hunting and trapping coons, skunks, possums... many of which are near confirmed and potential waterfowl breeding sites.