Great article, showing how good the main brands are, and how close in real terms, and mainly the "feel" of the tyres and testers preferences being a more important factor than measurable lap times / stopping times.
Generally I take more interest in wet grip, as I know all of those tyres will never let me down in the dry, running out of grip is so unlikely on a clean, dry road, but grip levels in the wet can be very low, and here feedback is also important as it really helps with confidence, in the dry I just "know" I have enough grip 99% of the time, in the wet I am always (rightly or wrongly) not so sure.
Might look at Dunlops next time as perhaps the sporty profile will help agility on big adventure bikes.
The Pirelli and Metzeler are the same company, I often wonder if they are the same tyres with a different pattern on them, but the braking test was very different - so maybe not - or the pattern makes that much difference?