I honestly see no benefit in any sort of ratings system. The code is free and easy to peruse. If it is not easy, and lacks documentation, throw it away and try another module with similar functionality if available. Rinse. Repeat.

Other than that, I would say in order the important attributes for choosing a module are:

It does what you want (duh)

You like it

It isn't overboard for the job

You've heard of it / Other people like it

--
perl -pew "s/\b;([mnst])/'$1/g"