For cold weather I like to wear a base layer with either 100% Merino wool or a high percentage of it in a blend. If you've not worn Merino wool before, you've been missing out. Its got all of wools good qualities that you know, but is super comfy.... there's no longer any tradeoff

. As I'm really active I need things that wick and breathe well, I've got some Underarmor cold gear that works well, though sometimes the snug factor becomes less comfortable nearing the end of the day, I don't find this with the Merino, though admittedly the Merino does not wick as well. Sometimes its an advantage..... other times its not.
This year I've got some new jackets to try out, one is a camo UnderArmor fleece with windblock, and the other is a Rivers West with a hood that I think will be better at layering than what I've been using. My outermost jacket was too heavy and did not breathe.... the thing gets wet and stays wet, so off it goes. It was also quite bulky and would not pack up neatly when I had it on my pack. The jacket was part of a cheap Dickies 2 piece layered zip-together combo I bought 4 years ago pretty much on its price point alone. For really cold hunting I'll wear a my merino base long johns
and some thick polar fleece pants I got at MEC underneath my camo pants. These days if I'm looking for hunting wear, I'll immediately stop looking at something if it has a shiny nylon liner inside, thats just a sweat trap. I have one coat that I think will be OK once I rip the nylon liner out.
I agree that quiet fabrics are very important, and I just wash mine with an unscented Tide instead of bothering with the pricey 'hunting' detergents. I don't like velcro on hunting clothes as its noisy and catches burrs.
I wish more manufacurers besides Browning would carry a line of hunting clothes in Mossy Oak Brush pattern. I think that particular camo is best suited for my hunting enviroments, especially in winter.
I'm a bit of a hypocrite in that I think we get carried away with the whole camo trend, but still wear it anyways

. Mankind has been hunting sucessfully for millenia without using Mossy Oak products. There's probably been more game taken by guys in red plaid flannel than in all of RealTree's product line. More sucessful than that probably though, is the natural camo used for hundreds of years: animal skins and furs. I think the thermal performance, comfort and utility of your clothes is more important than what pattern happens to be on it.