Bill Erickson

<p>When you upload an image, WordPress will automatically scale/crop it to many different sizes. If you’re not happy with the auto-crops, use this plugin to upload an alternative image.</p>
<p>If you have images showing up in your theme already, there’s nothing you need to do after activating this plugin. All WordPress functions that provide the thumbnail should now automatically work with your override image.</p>
<p>This plugin will add a metabox to every post type and allow you to modify every image size (built-in and custom ones added using add_image_size). You can use two filters to change these (image_override_post_types and image_override_sizes). For examples, see the documentation.</p>
<p><a href="https://github.com/billerickson/Image-Override/wiki" rel="nofollow ugc">Documentation</a></p>
<p><strong>No support will be provided by the developer</strong></p>


Image Override

Allows you to override WordPress' auto generated thumbnails.

NebulosaWeb

<p>Simple Featured Posts is a pratical widget that allows you to show a post list with thumbnails ordered by random or recent posts. You can also choose post’s categories and how many posts you want to show.<br />
This widget show the first image found in the post as thumbnail or thumbnail image of posts if supported by template.</p>
<h4>Features</h4>
<ul>
<li>You can show a thumbnail image.</li>
<li>Choice the number of posts to show.</li>
<li>Posts list ordered by random or date.</li>
<li>Choose or exclude categories from posts list.</li>
<li>TimThumb support for a perfect resize.</li>
</ul>
<h4>Appearence</h4>
<p>The appearance is essential to allow people who use it to customize their own template’s CSS easily, without clashing too much with the preset styles of widget.</p>


Simple Featured Posts Widget

Simple Featured Posts is a pratical widget that allows you to show a post list with thumbnails ordered by random or recent posts.

Image Override vs Simple Featured Posts Widget