Looking at options for a good foul weather long-term expedition tent.
I may or may not be using it for Denali, and I have other plans on using it in the arctic as well.
Right now I'm torn between a Hilleberg Keron 3gt or a MH Trango 3. I know they're both solid expedition tents with good reputations. I like the added wind shedding ability that I would assume the Trango has over the Keron, but I like the layout better in the Keron (big fan of tunnel tents when weather allows). The Keron is also just a bit lighter, but at those weight I would consider the difference negligible.
The Trango is obviously cheaper, but this is a tent I plan to use over a longer span of time. My biggest concern about the longevity of the Trango is the PU coated nylon and the plastic windows. I've seen a good number of the windows that have gone bad on older tents (though admittedly have not seen it on a Trango specifically). PU seems to tend to break down over time no matter what you do, and I've not seen that silnylon has that same issue (plus the 40d silnylon on the keron should be much stronger in the first place).