I am thankful for all the thoughtful comments on these test results. After thinking through this more, I would like to offer some thoughts on why you might NOT want to conclude the Mobil 1 filters are "better" than the EaO. I think BuickGN and Gary Allan have the right idea.
Consider the vehicle in this test: A new vehicle in excellent condition, that has used Mobil 1 since the 1,000 mile mark. The first test began with oil that was installed at the 5,000 mile mark. The engine is running well and has no operational issues; also, because of the "newness" of the engine, and frequent oil changes with synthetic, I would venture to say the engine is likely very clean internally. This is the environment in which this test has run.
Now, consider another scenario - perhaps a high-mileage vehicle with questionable maintenance history, or perhaps, one of the engine models that is known to have sludge problems. In this environment, the oil is likely to have more insolubles circulating in the oil, therefore the filter has more impurities to filter out.
Chances are, the filter that filters better will plug up sooner. If you perform the test before the filter plugs up, I would venture to speculate the Mobil 1 might test out better. But in the same conditions, the Amsoil filter might filter longer before it plugs. In that scenario, I would much rather have the Amsoil filter in my vehicle, if it is kept on longer than the point at which the Mobil 1 filter would plug and go into bypass frequently.
So - it's not always a simple choice, even with data such as what I have provided!