XenServer - Citrix XenServer is a complete server virtualization software platform built on the powerful Xen hypervisor offering fast and secure virtualization. Hyper-V - Microsoft Hyper-V Server 2012 is a stand-alone product providing a simplified, reliable, cost-effective and optimized virtualization solution. VMware vSphere - VMware vSphere Hypervisor is a free bare-metal hypervisor that virtualizes servers so you can consolidate your applications on less hardware. KVM - KVM (for Kernel-based Virtual Machine) is an open-source virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). OpenVZ - OpenVZ is a container-based virtualization for Linux that creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict. Virtuozzo - Provider of Virtualization, Storage, and Cloud Infrastructure Software. Source: https://www.g2crowd.com/categories/server-virtualization Does anyone have experience with server virtualization software? If so, which do you prefer as a user or hoster?