I feel your cold! Due to a few cases of frostbite when I was young, my feet tend to get cold faster than most others I know. I have found what works for me is using a thin liner sock with a wool outer sock. If I am hiking 4 to 5 miles or more, I will wear a liner sock inside a light to medium weight wool sock and waterproof hiking boots. I always carry a spare pair of wool socks so I can change socks during the day. Changing socks can make a huge difference. I always carry my dry socks in a re-sealable plastic bag that is also used to store damp sweaty socks once I change. Think scent control.
If I am hiking into a tree stand or ground blind and it is 25 degrees Fahrenheit or colder, I will carry most of my heavy outer clothing so I don't overheat or get sweaty feet from the exertion of reaching my stand.
For sitting long periods in subfreezing conditions, I have a pair of Cabela's Alaskan pac boots with a thick sole and removable felt liner. These are not boots I walk long distances in but they are extremely warm and work well for sitting still in very cold weather. I lived in North Dakota for 5 years and wished In would have had these boots then.
The last thing I do, which I am sure most of us have learned, is that when I return to camp at night, I remove all insoles and liners and let them air out or dry out as much as possible before the next morning. This can make a big difference as well.
As for liner sock material, I prefer wool because wool tends to hold less odor than polypropylene, thermax, capilene, coolmax, or any other long list of polyester or other synthetic materials. When I am hunting in remote areas or places with limited laundry facilities (stream or lake), wool makes a lot of sense. I have a used a number of fabrics for liner socks and they all worked well for me, though.
I have decided that how I dress the rest of my body is very important to how warm my feet stay. If I dress too warmly for the level of activity, my feet sweat more and then get cold easier. And as mentioned by a few earlier, having enough space for your toes to move is important.