Microsoft has released a Best Practices Analyser for Hyper-V. It is available for download now. Like the other BPA’s for Windows Server 2008 R2, you will run it from Server Manager. When I am asked about best practices I usually have to resort to the consultant’s answer: “it depends”. But there are some things you can catch and that’s what this tool will do.
Some enterprising OpsMgr management pack author might be able to take advantage of this tool to do some cleverness: imagine if a management pack could run the tool and use the results to generate alerts. That would be nice to run periodic automated checks of your Hyper-V hosts and virtual machines.