I recently bought a pair of Schnees Hunter II's. Simply put, these are the best walking/hunting boot I have ever owned. Bedroom slipper comfortable, tough and warm.
When I last went out a few weeks ago, the temperature was about minus 10 C (about 15 F) with a 20 knot NW wind and blowing snow. Took me 3 hours to walk back home in that mess, sometimes in knee deep snow and I frequently broke through the ice over frozen streams. My feet were never cold. (As an aside, I was wearing all wool - longjohns, pants, inner & outer shirt & jacket).
I love these boots.
Bonus: Schnees are made in the USA and they are a pleasure to deal with.
My two bits' worth.
Robert