The best replacement for hyper-v is vmware.

The best alternatives to hyper-v are rated as following:
★★★★★  vmware
★★★★  esxi
★★★★  virtualbox
★★★  vmware workstation
★★  vsphere
★★  esx
★★  xenserver
★★  virtual pc
★  kvm
★  vmware player
★  esxi 5.5
★  vmware esxi
★  xenserver 6.2
★  oracle vm
★  vmware performance
  vmware workstation 10
  hypervisor
  vmware workstation on windows 8
  vmware server
  virtualbox windows 8
  virtual server
  virtuozzo

Your alternative for hyper-v is not listed? Suggest!
Speaking about hyper-v, one probably shouldn't forget about failover cluster.

Other search terms related to hyper-v and their ratings are:
★★★★★ failover cluster
★★★★★ virtualbox
★★★★ server 2012
★★★ vmware
★★ live migration
★ xendesktop
remotefx
You have in mind a companion for hyper-v and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of hyper-v in all years. Click on graph for more.
hyper-v
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esxi