Yes they are called a Tendex rating and I believe are used by many scouts to get an "more" objective ranking of players. It's not just scoring average for example. But in general it includes points, rebounds, blocks, assists, to's, etc. Usually Garnett leads the Tendex ratings...Duncan has always also been a top 5. 1-10 right now are:
http://www.realgm.com/src_playerrankings.php
Garnett, Iverson, Brand, Pierce, Camby, LeBron, Duncan, Marion, Wade, Nowitzki
Here is one link that I googled
http://www.dougstats.com/Tendex.html