Cisco commissioned a report by Principled Technologies with running VMware View 5 on UCS. The highlight of the report is the importance of using QofS in your deployment. Below are three of the charts from the report. The report is actually really good starting place for a build document for your infrastructure. We are just getting some loaner FlexPod gear in so I might reference this document to make sure I have it properly set up.
I think it’s important to note that VMware provides QofS too. vSphere 5 has IEEE 802.1p tagging with vDS. This document can show you how to set it up: http://www.vmware.com/files/pdf/techpaper/Whats-New-VMware-vSphere-50-Networking-Technical-Whitepaper.pdf
It think USC gives more options because of all the vNics you can create but if your current blade solution doesn’t offer the solution you still have options.
The full report can be found here: UCS_View5