I've got a KOM jacket, a Filson double mackinaw and an NAO which was the original predecessor to the hidden wolf and grey wolf companies.
My opinion is that I prefer the KOM by far for bowhunting for several reasons. One, it's got a good camo pattern in colors that blend with a variety of terrains. Two, the general design or "cut" fits me better and allows greater freedom of movement then either of my other wool coats. Three, it's just about the perfect weight to provide comfort throughout the bow season here in Missouri. It's good anywhere from about 50 degrees down to sub zero temps with a little judicious layering of the thrift store wool sweaters already mentioned. Things like the double layer shoulder cape, double zipper that lets you unzip from the bottom up when hot or when driving in the car are well thought out. The pockets are roomy and well placed without adding bulk. I give it an enthusiastic "two thumbs up". But it's expensive. Luckily I got mine by buying a single $5 raffle ticket at the UBM banquet years ago. :D
Now, if there is snow on the ground, the fall grey pattern of my NAO coat is the better pattern. I'm wearing it in my avatar picture but honestly, I just don't like the design of my NAO coat and I never thought it was quite as warm either. I don't like the collar, the rounded shoulders or the zipper with no overlap flap and the sleeves are pretty restrictive. They are made slimmer to prevent bowstring slap but if I put on a sweater it almost hurts to bend my arms.
My Filson? What can I say? The double mackinaw is an awsome coat! But, it's not the best design for a BOWHUNTING coat. It's a little bulky since it's two layers but for flat out cold protection I don't know how you could beat it. Also, mine is the red and black plaid pattern and I just have a hard time bowhunting without my camo. Yea, I know, plaids are fine for bowhunting but on hard hunted public lands like where I hunt, I prefer to wear camo even if it's just for my own confidence.
:My absolute favorite wool pants are the Swiss wool surplus pants from Sportsmans guide. The ones with the cargo pockets and the ankle straps. About 17 bucks a pair and a nice olive drab. I've got them on in my avatar too I think.