VMware is very popular for server virtualization, but in Linux environments Red Hat Virtualization provides strong competition – in part because Red Hat is much cheaper but also because some people find that Red Hat is easier to manage compared to VMware. However, Red Hat is behind VMWare when it comes to users ratings – but only slightly.
Small and medium sized businesses often use Red Hat but it tends to be small businesses who have IT teams that already know their way around open source software and Linux server environments. Red Hat works particularly well where a lot of servers are deployed in a high density configuration. That said, if you prefer Linux over Windows, you should seriously consider using Red Hat for your virtualization needs.