ryokurosu

This plugin is easy to set category ranking. 
If you view the post,Ranking is on the same category.
This plugin:
<ul>
<li>Easy setting ranking widget on same category</li>
<li>Frontpage ranking is able to choose</li>
</ul>
Please contact me if you want additional setting.

Simple Category Ranking

this is a better way to ranking widget with category.

DolarPatel

This WordPress plugin adds custom post type widgets or post widget.
You can filter by registered Custom Post Type.
<h4>Key Features</h4>
<ul>
<li>Title – description that appears over the list of recent custom posts.</li>
<li>Post Type – if selected, filter by a custom post type. (e.g. post).</li>
<li>Number of posts to show (at most 15) – enter the number of posts to display.</li>
<li>Show post view – if selected, this box causes a count of the number of view for each post.</li>
<li>Show post comment – if selected, this box causes a count of the number of post comment.</li>
<li>Show post date – if selected, Display the post publish date.</li>
<li>Show post image – if selected, Display the post featured image.</li>
<li>Show post Excerpt – if selected, Display the post Excerpt.</li>
<li>Show post category – if selected, Display the post category.</li>
</ul>

WordPress Popular Post

This WordPress plugin adds default custom post type widgets with post view , comment count etc.

Simple Category Ranking vs WordPress Popular Post