Scott Taylor

Most ratings plugins contain too much code: inline JavaScript, messy markup, weird CSS. Rate is simple, hardly intrusive, and completely overridable.
A Post/Page/Custom Post Type’s rating is the average of all comment ratings. A user can leave a rating when commenting, and change that rating inline after leaving a comment (if logged-in or Cookie’d).
Don’t be afraid to play around and extend the code: drop a <code>rate.css</code> file in your theme directory and mine won’t even load (by default, Rate stars are transparent with a white border, so you can use <code>background-color</code> to set your stars’ colors)!
<pre><code><?php 
// in this version, you need to insert these functions into your theme for ratings to appear
// you don't have to use the_rating(), the comment_rating() will work by itself, but the_rating() will not

// for a Post, Page, or Custom Post Type (average of all comment ratings)
the_rating();

// for a comment
the_comment_rating();
?>
</code></pre>
Read More: http://scottctaylor.wordpress.com/2010/11/30/new-plugin-rate/

Rate

Most ratings plugins contain too much code: inline JavaScript, messy markup, weird CSS. Rate is simple, hardly intrusive, and completely overridable.

ernestortiz

An iconic rating system. You can select in which type of post the review appears, where in a DIV, the number and look of the review stars (or whatever icon from font awesome) as well as its behaviour (some CSS3 transformation actions and a tooltip), etc.
<h3>Donations</h3>
If you want to help me in writing more code or better poetry, please invite me to a beer (or coffee, maybe) by sending your thanks to my PayPal account (ernestortizcu at yahoo.es). Thanks in advance.

Iconic Rating

Review or rating any post type, with stars or other awesome icons, adding some effects on hover (and tooltips).

Rate vs Iconic Rating