For what its worth, I use the Asolo GPS 520 boots and treat them religiously every few months with Nikwax, which keeps them waterproof and really dry regardless of snow levels. A set of full length gaitors (OR) complete the protection for my feet. These boots are great for winter use and will take any crampon, microspikes, or snowshoes you want to use and can be used in most any winter (or other season) environment you may find.
If your activities in winter mostly above timberline and/or technical, you probably should look into mountaineering boots for the added protection they offer. Though pricey and are not real comfortable in moderate to easy trail walking, if you do a lot of technical mountaineering you'll be better served by them.