Please check out the “KVM or Xen” poll linked below.
Created by Kris Buytaert – long-time open source consultant, co-author of the book “Virtualization with Xen,” and writer at Virtualization.com – this poll asks about your platform of choice while planning for the future: follow Red Hat to KVM or stick with Xen?
http://www.krisbuytaert.be/blog/kvm-or-xen
If you have strong opinions, by all means leave a comment.