All the bikes you list seem good for loaded touring.
I've been looking at the LHT myself. Assuming that they become available soon, what's the problem with them? Why are 26 inch wheels such a bad thing? They seem an advantage for two reasons:
(1) lower gearing is possible in that, if the wheel is smaller, one pedal stroke will push you slightly less far forward. Despite what crazy people who've never toured will say, lower gearing is better. The LHT goes up to 48-11 with 26 inch wheels--this is a high gear. LHT goes down to 26-34 with 26 inch wheels--this is a very nice low gear. Some of the other loaded "touring" bikes you mention don't have low gears anywhere near the LHT.
and perhaps of less importance:
(2) wider availability of tires. Slick or near-slick 26 inch tires are available all over the place. For example, with most loaded touring, you will be closer to a wal-mart, k-mart, etc than a bike shop, possibly by well over 100 miles. All of these mega shops will have 26 inch tires and innertubes and none will have 700 tires. Even if you carry a spare tire with you, it is good to be closer to that extra tire than further away. I don't mean to say to shop at wal-mart for bike parts instead of LBS's generally, but if it is between picking up a tire there and walking, I'd pick up a tire there. Indeed what I say goes for wheels as well, though at the mega-shops, you'd have to buy a whole bike and, I guess, give away the rest besides the wheel (at a cost of around $50 for the whole bike). The wheel would get you to an LBS, or possibly to the end of your tour. You could even use the rear wheel, with 7 cogs, once you adjusted your shifters to friction rather than index.
In any case. I just thought I'd throw in my 2cents. I bet not everyone agrees with me on this. Don't know when the LHT will be available.