Of course the Hawkeyes uniforms look like the Steelers, because the Hawkeyes (with the Steelers' permission) essentially copied their uniform (save the number style and the logo on one side of the helmet). The story is that when Hayden came to Iowa, and wanted to change the image, they asked the Steelers if they could use their uniform, and the Steelers sent them Terry Bradshaw's jersey as a template. Except for a few years at the end of his career at Iowa when Hayden tinkered with the jersey (the Hawk feathers? the block "IOWA" across the front), they've had the same look since 1979.
I agree with most of the rankings, save for Northwestern, I wouldn't have them that high. I particularly agree with him about that ridiculous "W" on Wisconsin's helmet.