BrightScope has ratings on larger plans but on smaller plans it may be a little more difficult. I provide a benchmarking service to my clients but it is done by manually inputting thier plans inforamtion into a program I use and then I can show them what they have compared to other plans. One of the companies advisors use is Fiduciary Benchmarks. I don't know if they have anything at the retail level for individuals. Here is there site. http://www.fiduciarybenchmarks.com/fi360.
Brightscope or Judy Diamond.