Originally Posted by
hohenheim
... a multiyear around the world tour....
A. Buy the strongest/most durable wheels I can find and carry extra spokes/tires/tubes and be prepared to spend money (if anyone has ever done this and could quote how much it cost to have a part fed ex'ed to say, remote Chile it would be awesome) and lots of time to have things shipped to wherever I happen to be in case I have an equipment failure.
or
B. Drop $$$$ on a LHT or Co-Motion Pangea with 26inch wheels.
...
I have never toured outside of North America, so I have nothing to offer on 700c/26 inch debate.
But I will say that there are some fine 26 inch bikes out there, you listed the LHT which I consider to be on the low $ end and the Co Motions which are on the high $ end. There are a lot in between, do not rule out Thorn, a company in the UK. I have two Thorn 26 inch bikes, very happy with both. The Sherpa is good for moderate loads, teh Raven is similar in capability to the Sherpa but uses a Rohloff instead of derailleurs, the Nomad is very solid for expedition use with a Rohloff.
The amount of weight you carry is going to determine what kind of bike you need, I do not mean wheel size, but frame strength. You should load down the Fuji and see how it handles with the weight you might want for a round the world trip.