Heya,
I tire of these kinds of tests.
I'd rather see a skilled photographer take the lens(es) and go do a real world shoot with each one, the scenario, like birding/wild life (since these are telephoto) and see how they perform and how the images look. And then hear their opinion on how the lens(es) perform wide open, versus stopped down, and how fast and accurate autofocus is on moving objects (birds in flight for example), etc, and at what shutter speeds and ISO's they were able to track/pan with and without the IS/VC/OS if applicable.
Very best,