I've had a pair of Lacrosse boots with the air bob soles and 800 grams of Thinsulate for going on 10 years. I love 'em. But they don't seem to make them anymore. They have several similar boots available but the only one I see with the air bobs is uninsulated. Which would be fine much for much of what I use mine for. I wear mine in the woods almost every day in the winter and have walked hundreds of miles in them with no problems. Even in cold and snow my feet have never been cold. I have never tried the Xtra Tuffs but have seen many good reviews, and I will definitely look at them when I am ready for a new pair. This Lacrosse boot is similar to what I have:

http://www.lacrossefootwear.com/product/hunting+boots/rubber+boots/burly+air-grip+hunting+boots.do