I'm a bit surprised about the discussion on hoods. In the class of jackets the OP is looking at they add very little weight but significant warmth. And as others have noted, you don't have to wear it at all times. These types of jackets also make great garments to wear in your sleeping bag or quilt to extend it's temperature rating. In the case of a quilt the hood is critical.
Wearing a DOWN jacket, or, ANY isulated jacket or vest INSIDE a sleeping bag is the most inefficient and ineffective means of "adding" additional "warmth" to said bag. It compresses the down, can cause it to dampen from your increased perspiration and/or condensation and also makes many bags too tight, which lessens the effectiveness of the bag's insulation and can can cause cramps in your extremities from being too snugly cocooned.
Tossing a down jacket on top of a down bag can cause some of the same problems, the jacket typically will NOT stay in position all night and this is largely a waste of time.
Hoods, on expedition parkas, used, for example in winter Alaska and Canada's northern territories ARE beneficial, but, for a HUNTING jacket, in, again, the conditions given by the OP, they really do not do anything that other systems do better, as above.
I have spent many years working in wilderness and forest harvesting situations, doing certain types of forestry work, where the anbient temperature all day was around -25*F, we were on a large, deep, glacier-fed lake and it is windy in those mountains. I never saw ONE "pro" bushman wearing a hood, but, lots with woolen caps and some ear protection as well.
I think that making sure your BAG is sufficient to cope with the LOWEST temp. you will encounter and wearing the layer system I detailed above will work far better than a hood on a light jacket. That said, buy whatever YOU like and see how it works for YOU.
BTW, if you need additional insulation for your down bag and cannot afford a second one or a new WM, I suggest one of the "overbags" sold inexpensively under their brand label by MEC here in Vancouver. I have often slept at -10*F with an Integral bivy, my "summer" bag, full fresh merino longjohns, fresh wool socks, and my old woolen British "tanker" beret...and was warm all night and rested in the morning. Layers work and learning to do this will make your trips more enjoyable.