Both have been enourmously successful in the face of strong corporate competition, and much of this success can be attributed to their optimistic approach to people's needs, and their community-based development. WinNT is the other server system growing in corporate use in the late 90's. It has a similar age and growth rate to Linux. Windows NT is not the market leading internet server. Easy to use For Windows and Mac clients, Linux has the same or better ease of use.
Internet standards is a strength of Linux.
In addition, Windows standards have been cloned. The maintennance of the client computers is also the same in both cases. Routine server tasks, such as adding users, have similar ease of use on both systems. On Linux they can be done more easily remotely. Linux management suits the technical expert for installation and configuration, although it is rapidly becoming more approachable for general computer users.