Microsoft Hyper-V
Microsoft introduced its hypervisor in 2008, and has continued to release new versions along with the new Windows servers. Hyper -V helps one expand or establish a private cloud environment, promotes effective hardware utilization, improves business…
I haven't personally worked with NComputing.
But I think VMware Horizon View is a better, because VMware is a leader on virtualization in the world and you see support , development and applications...