Comment by skeaker

Fair enough, but I think many people miss that something can be suboptimal in one way and very optimal in another. As an example, plenty of people here hail ffmpeg as the most optimal way to convert videos between formats, and for the technically inclined it sure is. Despite that, probably 99% of people that have ever needed to convert a video haven't touched it/don't know its name and never will because its interface is totally suboptimal. "It is the best and not successful" can be read as a true statement, but it leaves out that it is the best in this one sense and is far from the best in another sense.

To bring this back to the point I have found that AD is well documented, functions generally the same everywhere, and has an intuitive enough interface that you can get not-super-techy interns on the helpdesk up to speed on reseting passwords in it in short order. I couldn't say the same for any Linux management system I've touched, so even though you could say "system management on Linux is the best" and have that be a true statement, you're still missing where it fails and why that area matters to businesses.