Derek, I have not done a test like yours, but have many times compared lenses. What I do for myself is display the largest images from PhotoCD on my screen at 100%, and then just crop out a representative detail from each at maybe 200x200 pixels. Just anything that will show what two different lenses, or same lens at different apertures, (or medium) can do. Then I can display these details side by side.
I have great respect for your response to criticism. Many people cannot differentiate between criticism and insult. After all, either is just an opinion. ---scott