It's a given that fit is of ultimate importance, but I would highly recommend you try on the Mammut Kootenays at MEC. My impression after a couple seasons is that seamless leather interior makes them super comfy and eliminates a lot of common heel rub spots, wide toe box prevents toe impact and blisters, and I feel like the heels are a little lower than usual which makes them feel more like shoes than boots. That's pretty subjective, but definitely throw them in the mix when you're trying on boots.