Rahul Ramesh

This plugin will add a recent comments widget for Disqus, to your WordPress site. The widget will not impact your site loading time, as all the queries made to the 
Disqus Servers. The main features of the widget include: 
 – control avatar size. 
 – use circular avatars. 
 – control comment excerpt length. 
 – hide avatars 
 – hide comments made by moderators. 
 – control the number of comments. 
 – the widget will adapt to the parent style of most themes.
View the plugin website (http://worldanimeclub.com/blog/2014/06/03/disqus-recent-comments-widget-advanced/)

Disqus Recent Comments Widget Advanced

This plugin will add a recent comments widget for Disqus, to your WordPress site. The widget will not impact your site loading time, as all the querie …

Ron Zvagelsky

Integrates with the Disqus API to show your most popular threads (most commented posts). Can be added via sidebar widget, template tag, or shortcode.
<a href="http://presshive.com/plugins/disqus-popular-threads-widget-for-wordpress/" rel="nofollow ugc">For more information or to request additional features, please visit the plugin page</a>

Disqus Popular Threads Widget

Shows your most commented posts from Disqus via widget, shortcode, or template tag.

Disqus Recent Comments Widget Advanced vs Disqus Popular Threads Widget