I have the DSD leading hen, and it looks nice. I wish it were a bit darker, as having had hens come into the decoy, it is considerably lighter than the hens I see. I purchased the leading hen, cause there was nothing else available, but upon reflection, with the stake out, it becomes a breeder, and with the stake in, it looks realistic as well... If I were only going to purchase one hen decoy, the leading hen would be my choice.
I just purchased the Avain X jake, and I made the purchase cause the decoy is a bit over 1 lb lighter (DSD jake comes in at just over 6 lbs and the Avian X at 5 lbs from my understanding), and collapsible if necessary (although it is a pain to blow up).
No doubt at all that the DSD is considerably more durable. But the Avian jake has far better and more realistic movement with a slight breeze than does my DSD hen.
Comparing my jake to my buddies DSD, I like the pose of the DSD a bit more, and I am not overly fond of the barn-red paint scheme of the head on the Avian. However, from 20 yards away, I actually think the Avian looks every bit as much like a real turkey, and with the motion of the Avian in a soft breeze, it looks considerably more life-like.
I have not hunted over the Avian X, but if it holds up reasonably well, my choice would likely be the combination of DSD hen and Avian jake, or Deception hen and Avian jake...