I know you said insulation is less of a concern but I gotta put in a good word for Baffin boots. Waterproof, with replaceable and removable insulated inner liners. The difference wearing those makes in snow is immediately perceptible, and they all have good traction too. I have bought used pairs and all but one set (my kid's) still look pristine after multiple seasons.

Bogs also seems to be good quality, though I haven't worn them myself. Their insulated rain boots have withstood an impressive amount of abuse from my kiddo.