I like all of the feathers mentioned, including hen saddle. The key to hen saddle if you wind the stem instead of distribution wrap is recognizing the unusually steep taper of the barbs on the stem. Hold the extreme tip in small hackle pliers and stroke back the barbs. You get fibers from # 30 through to # 10.
However, the taper goes very fast, so there will only be maybe 2-4 fibers at 20, 18, 16, 14, etc up to # 10 at which point there are plenty.
So, using magnification if required, note the length of the fibers on the stem at the tip and stroke back from the tip. Tie in by the tip and wind only those fibers. At first that may not seem like enough, but it is. I frankly like the taper effect of having a few 20s, 18s and 16s barbs. On a # 16 that is plenty of fibers and some would say too much.
When tying a fly, Leisenring tied the hackle in first and I advise you learn to do the same. In this instance, tie in tip first with the tip facing the bend, dull side on top of hook. Yes, you have to use the wrong hand to do this but it's not that hard after you get it secured. Tie the rest of the fly and when you come up to the front, leave the bobbin a bit behind the feather and wrap back to it, secure, trim, move to eye, gather fibers and stroke back slightly, then whip or hitch.
Or use any fiber you want by distribution wrap. If all you want is a collar, it makes no difference.
However, there are very interesting effects that can be produced by winding hackle. I will often wrap the hackle first and include far more than I will leave standing at the end. This allows me to gather barbs anywhere on the shank as I see fit. The bulk of tying down or trimming what I don't use is minimal. The steep taper of the hen saddle is a considerable advantage in doing this, since I need the long fibers to get to the middle or further on the shank, but still have the the short fibers at the front. What seems like a problem has been turned into a tactical advantage not available with other materials.
Hen Saddle Feather Steep Taper
Hen and Peacock, #16 regular shank. A three minute tie.