[CentOS-virt] Replacement for virt-manager

Hi, I have more than 20 VM in production with a shared storage and 6 blades as HV. Things begin to look confusing within virt-manager since there is no way to display only the powered-up nodes (the migrated and switched off machines appear on every hv entry). I wonder if there is something different and more appealing than virt-manager to manage such an infrastructure. My requirement are:

be able to switch back to virt-manager whenever I want do not require switching nodes off, reboots, or any kin of intervention on VMs be open source be stable

Anyone can suggest something?

Andrea