Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Slackware server hosting is one of the newest trends in domain hosting that is allowing many users to move from a Windows hosting platform. There are a lot of clients that are accustomed to Windows hosting, but loads of clients are seeking new hosting environments.
Slackware isn't exactly a new environment, but it has maintained a widespread use since its inception in 1993. It never quite gained the same popularity as Windows, but it has managed to be popular enough to move from one version to the next.
There's definitely not much of a comparison between a and a Windows hosting server or with it's environment. Users that are interested in the graphical user interfaces that Windows is known for should stick to Windows. However, users that are interested in tweaking their systems and getting more familiar with command line prompts will enjoy Slackware. This is the major difference between the two.