Just one bit to add, the MSR Dragonfly is REALLY loud. I'm talking jet engine loud. Many people don't care and are happy to trade the noise for the ability to simmer. I rarely if ever simmer in the winter, so it's not a good trade off for me. But I have hiked with folks who like to cook cakes and pastries, even (especially?) in the winter, and their calculus is different. The Whisperlite and Whisperlite Int'l both hiss at a much more reasonable number of decibels, in my opinion, and these are my suggestions. Also, I've been a LOT of places in North America and have never once had a problem obtaining white gas/Coleman fuel. In fact, sometimes it seems the further out you are (Alaska bush, for example), the more likely you are to find random gallons of Coleman fuel in all kinds of strange places. So I wouldn't put too much stock in the ability to burn every kind of fuel imaginable. If you're travelling to other continents to hike, it may be different, I really don't know. To reiterate what I wrote in the other thread, i DON'T recommend any canister stove (i.e isobutane/propane) for winter use in the Whites. An alcohol stove COULD work, I suppose, as ethanol freezes at -173 degrees F, and denatured alcohol likely freezes at a lower temperature than that (if it's colder than that, you've got some serious problems). But I've never once heard of anyone using an alcohol stove to melt snow and boil the large volumes of water needed in winter, all of the designs I've seen are meant to boil a couple of cups of water at a time starting from above freezing. To provide some perspective, my stove is usually running for several hours straight in the evening to make water to rehydrate from the day, to make dinner, and to boil two additional liters to shove in my sleeping bag for the night. Making water is the usually my single most time consuming activity in winter.
