Mosterd3d

This plugin contains a rating module. Add a rating to a post. You can set multiple ratings to one post. The ratingform in front will be include inside the commentform. 
Add [averageRating] inside your post as short-code to show the average.
<h3>Arbitrary section 1</h3>

DD Rating

Just another DD rating plugin. Add ratings to posts.

SupportHost

Ivan Messina

SupportHost star rating plugin will give you the possibility to add star rating to the comments, so your user can give a rating to the different features of the products/services you are reviewing.
This plugins is ultralight. It only adds a 3Kb css to your website.
This plugin doesn’t have a pro version, this means that all the features will be available for free for everyone. If you want to support the plugin consider using <a href="https://supporthost.com/" rel="nofollow ugc">SupportHost web hosting services</a>.
This is a valid alternative to plugins like:
<ul>
<li>
<a href="https://wordpress.org/plugins/yet-another-stars-rating/" rel="ugc">Yasr – Yet Another Stars Rating</a>
</li>
<li>
<a href="https://wordpress.org/plugins/rating-widget/" rel="ugc">Rating-Widget: Star Review System</a>
</li>
<li>
<a href="https://wordpress.org/plugins/multi-rating/" rel="ugc">Multi Rating</a>
</li>
<li>
<a href="https://wordpress.org/plugins/stars-rating/" rel="ugc">Stars Rating</a>
</li>
<li>
<a href="https://wordpress.org/plugins/kk-star-ratings/" rel="ugc">kk Star Ratings</a>
</li>
</ul>
<h4>Key Features</h4>
<ul>
<li>
Choose the categories, tags or custom taxonomies for which you want to show the rating. For example, only the posts in the review category will have the rating enabled
</li>
<li>
Decide the features you want your users to review. You have no limits here.
</li>
<li>
Decide if you want to show an average rating box on top of every post that has been reviewed.
</li>
<li>
Use a shortcode to place the average rating box wherever you like.
</li>
</ul>

SupportHost Star Rating


Kudos to Supporthost! This is the lightest plugin to add star rating to the comments.


Lightest plugin to add star rating to the comments

Ultralight star rating plugin. Just 350 lines of code and 3kb css. Ask for star reviews to your users without hindering performances.

DD Rating vs SupportHost Star Rating