"Never mind the quality, feel the width"
To my eyes, the 70 Lux, LED IQ2-TEC in panoramic mode most resembles that of the Solidlight, albeit with the top half missing, i.e., all the light is on the ground, which I guess is a good thing.
Now, mebbe it's because I'm a fixer but my first priority, especially when descending winding lanes, is to be able to see *all* of the road, because I take corners wider and nearer the verge than a geared bike, and discovering I cannot see the road immediately in front, especially that bit where the potholes live, is *bad*. Spotting potholes in the middle of the road isn't generally a problem at 40-50kmph which is where I spin out.
Those descending at 70kmph+ probably have different priorities, though it's always struck me that doing so at night, even on good, well lit roads is a bit daft.
Edit: X-post with FBOAB (welcome back, F!)