Ive had Danner and Rocky boots. I like the Rocky's better but the Danner were fine. I honestly think all of the upperend boots are pretty equal. As long as they have gortex you'll be fine for the temps you are talking about.

For me the Danners only lasted about 4 years before they started falling apart. I've had the Rockys for over 10 years now and they are still going. Both are leather hunting boots I only use during season and out cutting wood when its cold.