– If you just like a simple (but useful) alternative, UrbanNews Rating plugin is a choice (free, packed with UrbanNews ). You will find it in /Installation Files/Plugins/plg-urbannews-rating.zip. Once installed, there is a setting page for it in admin

• Point
  
• Star

•  Percent

– Once you have set some default things here, in Post editing page, you will see Review where you can configure more settings or override default settings.
In addition, rating also allows Guests to evaluate for your posts.