My feet get cold fairly quick when I'm on a stand, which is the way I like to hunt. Sorels seemed to be about the best boot I could find to perform decently, and I would buy new liners about every other year. I haven't been able to get liners for them anymore, so I had to stop wearing them.
I got a pair of Danner 1200g. Thinsulate w/Goretex and find they do an admirable job. Like was already stated, they all work best if you can keep your feet off the cold, frozen ground.