I used G&H for years, going back to the mid '70s, and some definitely held up better than others. Pintails and teal from back then are still usable, albeit repainted a couple or three times. Mallards, over-sized and standard, haven't held up nearly as well. The keels broke off all my o-s mallard hens (apparently from bending in the bag), my o-s mallard drakes all eventually split down the back seam, and all of the standard mallards eventually split along the angle where their sides met their bottoms.
But even if I agreed that they were "all that and a box of chips" for durability, G&H mallards still look just like decoys, rather than ducks. And some of the new "improved" postures are downright cartoonish.
Wish it weren't so.
(We've 25 year old Flambeaus that have held up as well or better.)
If you think I'm wrong, you might be right.