We use the Debian environment to run most of our servers and workstations.
Currently we have 7 web servers and 12 workstations using Jessie. Our main reason for choosing Debian over other Linux distributions was its stability.
In our opinion no other system works as stable as Debian. The second reason we chose Debian was the frequency of updates and availability of all the content. All these reasons make it for certain that we will use Debian again to run our future planned servers.