It may be an idea to give a number of rating on modules such as ease of installation, number of dependencies, documentation and so forth.
The fun I had building some modules that require lots of other modules which may require some library that is a real pig to build.
This may be a better way of scoring a module than a simple score, so if there are 2 modules that do the same job but one is fairly simple, well doc'd and pure perl it may score more than the more complete, faster C module that can only be compiled with IBM's compiler on SCO Unix on a wet Friday afternoon provided the month has an 'M' in it. :)