We actually DO the tests on all buses to find real performance numbers. And I have yet to see published numbers match what reality is. We have 6Gb SAS cards with over 1.5GB/sec throughput capability, we have full speed USB 3 buses (in PCs, not Macs). We have SATAIII buses to test on. And we have built in Mac buses. Any consideration of a SSD or hard drive must go through the full gamut: reliability, compatibility with Macs, support from the manufacturer, and REAL performance. Just tossing out that a given, new model drive from manufacturer 'X' is so much faster on paper, and hence the only drive to consider, is too small of a data set to be useful for us.
When I stated I would have to go look at the results, I mean look at what I have in my files, not go back and do them. At least for models we have tested. It takes quite a bit more than just the bare performance numbers though. Just considering Trim modes on different manufacturer' drives can have incredible impact on long term operating reliability on a Mac. On a PC as well, but manufacturers write their firmware first for PCs and many don't even test on Macs, let alone make the firmware reliable over time in a Mac.
molṑn labe'
"I am a mortal enemy to arbitrary government and unlimited power. I am naturally very jealous for the rights and liberties of my country, and the least encroachment of those invaluable privileges is apt to make my blood boil."
--Ben Franklin