Virtualization has always been a strength of the mainframe platform. Today, users can choose between a variety of hypervisor options to run their workloads, including IBM's z/VM, Linux' KVM technology, and Red Hat's OpenShift Virtualization. We will explore the main characteristics and unique capabilities of those solutions, look at our strategy around future development and upcoming enhancements in the virtualization space, and discuss considerations for making an informed choice which hypervisor can best fit your needs.