This is an interesting thread for me, because I have a choice between either a fully loaded XT600 or a KTM 640 Enduro with the tank of an Adventure, which seems to be one of the major differences between the two models.

I've always been given high praise for the XT. I'll be honest though, the thing which is swaying my opinion is the sheer beauty of the 640. I'm worried about the reliability though and as I have absolutely no experience fixing bikes, it worries me more than it would other people. If I knew that the KTM could get me to Australia, I'd pick it. I just have a huge fear about being stuck in the middle of nowhere with a broken bike!

I'll keep an eye out for this thread. I know it's asking between a DR and a 640 but it's still quite relevant to my dilemma. I suppose what it could come down to is whether you pick by your head or your heart.

If you are a serious rider, a few minutes on each of the bikes you are
considering should clarify things nicely. The difference in the suspension on the two bikes is huge.

And if you listen to anyone's comments in this thread, listen to Colebatch.
He is the real deal, and he has been there and done that.

Also, it's worth noting that the 640 Enduro has a Keihin FCR carb, but the Adventure
has a Mikuni BST constant velocity carb. The FCR is better suited to "performance"
but the Mikuni is better able to compensate for changes in altitude, and that makes it
perhaps a better choice for a traveling bike.

Those who say the KTM is unreliable are mostly repeating things they have read on the internet.
Those who actually OWN a KTM won't trade their bike for any other bike. That should tell you
something.