Gorakh Shrestha

This plugin allow you to easily fetch popular post and get total view in post. Simply use <code>'orderby'=>'popularity'</code> in query string.
Add <code>'post','posts_per_page'=>-1,'orderby'=>'popularity'); 
$query = new WP_Query($args); 
?></code>
Features
<ol>
<li>Support the custom post type </li>
<li>Option page to allow popular post option in post type.(Setting > MPP Setting)</li>
<li>Can easily get total view for particular post using <code>get_view_number()</code>, <code>get_view_string()</code>. Function must be within loop. </li>
<li>To print the total view for particular post <code>the_view_number()</code> and <code>the_view_string()</code> both function are almost same but <code>the_view_string()</code> return with ‘views’ text.</li>
</ol>

Thamizhchelvan

This plugin will show most popular posts under each posts based on the post views.

Yet Another Most Popular Posts

This plugin will show most popular posts under each posts based on the post views.

Popular post vs Yet Another Most Popular Posts