BK as one who also "bust brush" I would suggest that you eliminate the word neoprene from your vocabulary re. wader selection. The breatheables are perfected and the last two years have been the most enjoyable wading summer and winter of my life. I was skeptical to say the least that some thing so frail in appearence could hold up to daily use in the trails of rainforest brush and eastern thickets but they do and if by chance you rip up on something really ugly they patch up easier than the alternative.
As far as warm goes the fact that you are moisture free makes you a lot warmer in the winter also. Trust me I do not own stock in Gore Tex there a private company (I checked into that one). But I am into my third year with breatheables the first were expensive, 350 or more, 2 years ago I bought a pair of Dan Baileys they still after hundreds of days of hiking up and down and across the rivers and lakes of the northwest Read my lips NO LEAKS.