AaronKnoll

This plugin draws an SVG pentagon, based on the ratings that one assigns a given post. Users can choose the category for which the pentagon appears and assign names and colors to each of the quadrants.
Note) Inline SVG does not work on IE versions 8 and below; therefore, the stylesheet ie8.css makes nothing appear on versions below IE 9. Will work on all other major browsers in past and current versions.

Pentagon Rating Tool

Allows posts in one posts category to have an inline SVG pentagon rating at the top of that post. Adds fields on posts pages.

dFactory

<a href="http://www.dfactory.eu/plugins/post-ratings/" rel="nofollow ugc">Post Ratings</a> is a simple, developer-friendly, straightforward post rating plugin. Relies on post meta to store avg. rating / vote count.
For more information, check out plugin page at <a href="http://www.dfactory.eu/" rel="nofollow ugc">dFactory</a> or plugin <a href="http://www.dfactory.eu/support/forum/post-ratings/" rel="nofollow ugc">support forum</a>.
<h4>Features include:</h4>
<ul>
<li>Allow your site users to rate posts (of any kind)</li>
<li>Display the average post rating, vote count or weighted (bayesian) rating within your posts</li>
<li>Display a widget with the top rated posts in your sidebar</li>
<li>Allow you to create your own rating formula</li>
</ul>
Why another rating plugin? Because the existing ones are either outdated, bloated with useless functionality, or just too buggy 🙂

Post Ratings

Simple, developer-friendly, straightforward post rating plugin. Relies on post meta to store avg. rating / vote count.

Pentagon Rating Tool vs Post Ratings