I found this chart at the Chronicle very interesting. It shows the ratio of presidential pay to average professor pay. For example, at Stevenson University, it's 16 to 1.
My rule of thumb is that the quality of an institution is ranked by Instructional Costs/FTE. Here are some selected institutions from the right side of the chart, along with their "Z-scores", courtesy of CollegeResultsOnline (2009 data).