I must be getting old. My perspective on comparison testing / reviews / evaluations has changed quite a bit from when I was younger.
There's (virtually?) no measurement on a spec sheet in which the ST1300 even holds a candle to anything currently on the market. And yet, I still would rather ride a well-maintained ST than any other sport tourer on the market.
Horsepower? Not even a comparison. The ST is waaaay down on power compared to anything else on the market. And yet, I don't care. The ST still goes from zero to illegal faster than just about anything shy of a very expensive supercar. At 75 mph it's going exactly the same speed as any other motorcycle going 75 mph. What does 40 extra horsepower do, really? Get me to illegal speed 0.1 seconds faster?
Electronic gadgets? I don't care. I've never owned a bike that had multiple riding modes, and I've never been riding down the road and thought "My riding experience would be so much better if I had multiple riding modes". Same thing with electronically adjustable suspension. Or a TFT dash. Or Bluetooth connectivity. Or wheelie control. Or "insert new-and-improved item here". Maybe ignorance is bliss, but I've never found a gadget that improved my experience of riding. A more comfortable seat? Sure. A way to carry a beverage with me? You bet. Some gadget that I touch once and then don't think about again for two years? Not a chance.
Weight? The ST is a lead blunderbuss in comparison to other sport-tourers on the market. And yet, I don't care. You know what really stinks about light motorcycles? They get blown around too easily. The ST is heavy to pick up when you drop it? Then don't drop it. And if you do, learn how to pick it up correctly. You'd be amazed how easy it is to do if you just do it the right way (see all the threads about putting the ST on the centerstand). The ST1300 is stable, confidence inspiring, and goes around a corner way faster than my cojones are comfortable with.
No doubt I'm in the minority of opinion, but what I want in a bike is a comfortable seat, good wind protection, long range (I really miss my ST's fuel tank), electronic cruise control, and not much else. All the extra stuff is - in my opinion - just more potential things to break.
The ST1300 is a timelessly good motorcycle.