Wohoo!! When we where creating Login VSI we had a few goals in mind, one of them is becoming the de facto standard for benchmarking virtual environments (TS/VDI/Bare metal etc). And i have to say: something is happening in the industry. To begin with we have Project VRC by Ruben and Jeroen but recently Citrix published some rather interesting whitepapers.

Use free and reputable tools like LoginVSI from Login Consultants to simulate real-worldlike
user workloads.

VM density results are highly dependent upon workload characteristics. We used a
workload called Login VSI, created by an independent company, Login Consultants.
Login VSI, is well known in the VDI and terminal services community with testing of
8 various terminal services and VDI solutions from multiple vendors in a comprehensive,
ongoing test project called Project Virtual Reality Check
http://www.virtualrealitycheck.net/.