1. A method comprising: retrieving a first plurality of metrics for each of a plurality of physical hosts available for executing a virtual machine, the first plurality of metrics including at least a first metric identifying a level of usage for each of the plurality of physical hosts as of a first predetermined time period; retrieving a second plurality of metrics associated with the virtual machine, the second plurality of metrics including at least one metric identifying a level of usage exerted on a physical host by the virtual machine as of a second predetermined time period; assigning a first power score to each of the plurality of physical hosts responsive to the retrieved first and second pluralities of metrics, wherein each first power score is based on the first plurality of metrics and the second plurality of metrics associated with a respective physical host of the plurality of physical hosts; identifying a particular physical host of the plurality of physical hosts having a highest first power score of the plurality of first power scores, wherein the assigning the plurality of first power scores assigned to the plurality of physical hosts other than the particular physical host is specified in proportion to the highest first power score; determining a second power score, for each of the plurality of physical hosts, based at least in part on a metric identifying an anticipated level of usage exerted on each of the plurality of physical hosts by the virtual machine as of a third predetermined time period, wherein the metric is from one of the first plurality of metrics or the second plurality of metrics; identifying a first physical host of the plurality of physical hosts on which to execute the virtual machine, wherein the second power score of said first physical host satisfies at least one predetermined criteria; responding to the identification of the first physical host on which to execute the virtual machine by: i. adjusting processor performance states for one or more of the plurality of physical hosts; and ii. adjusting processor operating states for one or more of the plurality of physical hosts.