steve.barnett

Flexible hReview lets you add an <a href="http://microformats.org/wiki/hreview" rel="nofollow ugc">hReview</a> to a Post, then show that review anywhere on your site using the function or the shortcode. 
Also available on GitHub: <a href="https://github.com/SteveBarnett/Flexible-hReview" rel="nofollow ugc">https://github.com/SteveBarnett/Flexible-hReview</a>.
The options page lets you set:
<ul>
<li>field names for multi-dimensional reviews</li>
<li>the maximum rating</li>
<li>whether or not to calculate and display an average of the ratings</li>
<li>characters for before and after the rating text</li>
</ul>

Flexible hReview

Easily add hReview data to a Post. Show it anywhere using the function or the shortcode.

Marc Tönsing

Adds a hreview rating below the content of an article. Use custom field “rating” value: [0-10] and “rating_summary” value: [text]

MarcTV Microformat Rating

Adds a hreview rating below the content of an article. Use custom field "rating" value: [0-10] and "rating_summary" value: [text]

Flexible hReview vs MarcTV Microformat Rating