Get one of each
I still regret not mounting my first bull sprig, I've got his feather still, it's in a shadow box...but I wished I would have had him mounted. I generally will try to mount a duck if there is a story behind it, otherwise it's gonna be dinner. Right now my taxidermist has the first Mallard my Dad ever shot, along with the first one that my Dad ever saw me shoot (they came in paired up as pretty as you please no more than 10 yards in front of the blind, 2 shots two greenheads). Heck if I killed a spoonie with a good story I'd probably get it mounted...to me it's not about the duck it's about the hunt.