ESXi is highly recommend for virtualization these days for mid/large sized organizations due to its increased reliabilty and lot of other features.
1. VMWare ESXi is virtualization product that allows us to partition a single physical server into multiple virtual machines.
2. VMWare ESXi hosts can be with Windows, Solaris, Linux and Netware, any or all of which can be used concurrently on the same hardware.
3. VMWare ESXi has been proved as leader in cloud enterprise class solutions.
4. VMWare ESXi takes virtualization higher and deeper with rich storage automation and more advanced virtual networking tools.
5. VMWare ESXi allows dynamically to modify cpu, memory, disk and network configurations.
6. VMWare ESXi hosts can be accessed using vsphere client as well as in browser.
7. VMWare ESXi is good for production applications as well as for testing environment.
8. 24*7 support is available from VMWare for all kinds of support issues.
9. VMWare ESXi supports advanced features like state capture, live migration, high availability, dynamic resources etc.
1. License cost is little expensive.
2. Free version allows server memory upto 32GB.
Oracle VM, Hyper-V, AWS !!