Hi i have been working my way through all the threads on tyres I can find, and my findings are the two tyres that nearly always have good reviews are TKC 80, and the new Metzler Karroo 3. I will be buying a set of one of these in the next month or so.
Bear in mind the longest lasting tyres generaly have a high nylon content they last BUT THEY DONT GRIP on tarmac particularly if its cold or wet. I still have nightmares of my experience of the Jap bridgestones of the 1970s!! I would take high wear everytime over regular Hospital trips.

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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights