Debian is a preferred Linux release, that is used primarily on desktop machines, however a lot of people have begun using it lately as a web server Operating System too, because of the stability and security it supplies. The latter is a direct result the fact that Debian is developed and supported by a large number of qualified volunteers worldwide, so any patch that is required to fix a particular issue is released in a few days. The very same community will also help you with any question or issue which a user may ever experience, since they can be contacted through email using mailing lists and a qualified response will be sent in no more than 15-20 min. The advantage here is that your questions will be responded to by the same people who have developed the Operating System itself and they have a detailed knowledge of how it works. As Debian is provided for free, you won't need to pay any license fees to use it and you'll be able to personalize it as much as you want or need. This is valid for the Operating System as well as the 30.000+ software packages which are readily available for it.