Product : Red Hat, RHEV/3.6, RHEV
Feature : RBAC / AD-Integration, General, Management
Content Owner:  Roman Macek
No (native)
Yes (with Vendor Add-On: CloudForms)
No - RHEV exclusively manages Red Hat based environments.

With Red Hat CloudForms users can manage multiple hypervisor vendors and reduce training costs to switch over to RHEV. Details here: (additional cost, not included in RHEV subscription)