LordPretender

Similar to the original native one, this plugin let you define the range of stats to retrieve. 
Also you will be able to add the category name of the post.
Finally, this widget will only display posts (and not pages too). 
This plugin read the top 100 of posts/pages and keep only the X first POSTS (X = number defined in the widget parameters). So, you can have less posts than requested.
Jetpack is required to work. 
A wordpress account and your blog must be linked.
You can find a demo here : http://www.spoils.fr/ 
The widget is named “Articles populaires” on the sidebar.

Jetpack Popular Posts

Using Jetpack stats, this widget will display the most popular posts.

icopydoc

Add Star rating, pageviews and adds a tool for analyzing the effectiveness of content. Also this plugin adds a widget which shows popular posts and pages based on the rating and pageviews.
<h4>Displays the number of page views</h4>
[pageviews] – Displays the number of page views.
Notice:
<ul>
<li>This shortcode can be used in the body of the article.</li>
<li>This shortcode can be used in the loop body of templates.</li>
<li>This shortcode cannot be used outside the loop of the template.</li>
</ul>
Example:
<pre><code>[pageviews]
do_shortcode('[pageviews]');
</code></pre>
<h4>Display the rating starss</h4>
[pageratings] – display the rating stars.
Notice:
<ul>
<li>This shortcode can be used in the body of the article.</li>
<li>This shortcode can be used in the loop body of templates.</li>
<li>This shortcode cannot be used outside the loop of the template.</li>
</ul>
Example:
<pre><code>[pageratings]
do_shortcode('[pageratings]');
</code></pre>

Best Rating & Pageviews

It's works

Add Star rating, pageviews and adds a tool for analyzing the effectiveness of content with the supplied shortcode.

Jetpack Popular Posts vs Best Rating & Pageviews