"I honestly do not remember any itch from wool. I'm not just saying that. I always heard about wool "itching" but personally never was bothered by it."
You're lucky. Ragg wool lights me up. I can wear merino wool socks directly against my skin and I am perfectly comfortable, but in the one merino wool shirt I used, my shoulder and chest itched pretty badly. I'm taking a chance on a different brand of shirt this winter.
As for comfort, I think it counts for a lot. I'm going to push myself when I through-hike spending weeks at a time in the backcountry. Sustained comfort counts for a lot in the midst of other hardships.
When I deployed to Norway int he 90's for arctic training exercises, we always carried brutally heavy packs, due to the communications gear we needed, combined with arctic specific gear. Our base layers were polypropylene, mid layers were fleece, and heavy duty goretex formed our shells. Some of our Marines asked one of our master sergeants about "back in the day" when wool was used. He said he liked the newer stuff better, partcularly polypropylene because it didn't cause him to itch. One young pup commented that he must not be so hard at his older age. His response was "There's hard, then there's just hard-headed."
I backpack for a number of reasons. Physical challenge is a part of it. And I do push myself when I'm out and walking a 300 mile trail. I just don't see the need to test myself further by enduring uncomfortable clothing. The polyesther based layers I use have worked well, combined with variations of wind shells, fleece, primaloft, nylon. In really cold weather, I like a down jacket for insulation once I'm in camp and protected from precipitation.
I don't dispute that wool functions well in insulating even when wet. I just know from experience that I can get more comfortable performance from the synthetic layers I've used.
I really do envy your ability to wear wool in comfort.