Well, I find myself having a few different fans in my hands right now, and while not having suitable scientific equipment or facilities to do proper testing, I think I've found a simple way to compare them. I take one fan, and connect it to a multimeter. Then place the test fan right up against it. Then connect power to the test fan. The better the airflow and static pressure, the faster it will make the other fan spin. And the faster the other fan spins, the higher the voltage it will produce. Not a reference test as such, but a quick and easy test. As for noise I will just have to give subjective feedback. The fans in question I'll list with results and impressions when done.