Well, I just happen to be the Queen of Wool...LOL!
I own Bemedji, Gray Wolf, Swandri, KOM, Filson and others. Yes, I love wool...
Now, back to your questions. The warmest wool coat I own is the insulated Bemedji coat with the map/game pocket. It is amazing! The down side from a hunting point of view is that the coat's lining makes it too noisy to bow hunt big game in. For other purposes, however, it is super.
I also own a green and black Bemidji shirt/jac in the 85/15 wool blend. The wool is heavy, the weave is nice and tight, and it is a durable jacket. Used alone, it works well unless the weather is getting pretty cold. In that event, adding an additional layer of wool (shirt or vest perhaps)and you'll stay warm in a wide variety of temperatures. Personally, I think that this garment is a good buy for the money. In addition, it is dead quiet.
Gray Wolf makes some nice stuff....as does KOM. With these items, you get the benefit of camo and can add custom features. They are both excellent and I use mine (in addition to the Bemidji shirt jac) every year while bowhunting. They have proven to be invaluable tools.
If you have any other questions, just ask and I'll try to help.
Claudia