I believe a true touring bike would be much more comfortable. Is that an aluminum frame? If it is, it wouldn't be nearly as smooth and you're very limited in going with bigger, more comfy tires. You'd have to change out the stem on that to get the handlebar higher or your back will be killing you. I don't see any rear eyelets for a rack. In other words, not a good touring bike, IMHO.

You're finding out what I did when I went shopping -- there is no one perfect bike for every condition. But bikes like the LHT, Trek 520, Cross Check, etc. are all bikes that do several things well. It sounds like your leaning toward a touring bike. Get on an LHT and see if it does anything for you. I have not scaled any mountains on my cross check, if you're thinking you will be, a triple is probably for you.