c9429b30_yper_V_VS_Citrix_Xen___My_Blog__Hypervisor_Attributes
[VMware ESXi 5.0] Hot add VM vCPUs and memory, VMFS volume grow, hot extend virtual disks, hot add virtual disks Nothing comparable [Citrix XenServer 5.6 FP1] Nothing comparable [Hypervisor Attributes] 
Flexible Resource Allocation
Comparison between Vmware VS Hyper-V VS Citrix Xen | My Blog
Hypervisor Attributes