Alex

<p>This plugin ensures that there is only one sticky post published to the site. When a new sticky post is published, previous the ‘sticky’ flag is removed from any other posts, so they will no longer appear at the top of your page.</p>
<h3>Important Notes</h3>
<ul>
<li>I adapted code initially found at http://craiget.com/one-sticky-post-in-wordpress/ Thanks to Craige for posting it! Also, Devin Price (http://wptheming.com/) was immensely helpful as I knocked out a couple of issues regarding scheduled sticky posts.</li>
<li>The first time you publish a sticky post after enabling this plugin, any and <em>all</em> other sticky posts will be changed to not-sticky. There is not a way to automatically reverse this decision, nor is their a log of which posts were changed.</li>
<li>This plugin has not been tested with versions of WordPress prior to 4.0.</li>
<li>Do not use this plugin if you are using another to manage per-category sticky posts. It has not been tested with that setup, and it will most likely mark all of those posts as non-sticky.</li>
</ul>


There Can Be Only One

Ensures that there is only one published sticky post on the site at any given time.

primo411

<ul>
<li>Reorder your posts depending on their popularity and novelty</li>
<li>Choose to focus on novelty or popularity</li>
<li>Choose to make X new posts sticky, or during X days.</li>
<li>Choose to give bonus novelty during X days.</li>
<li>Customize value of a single view, a home view, a categry view, a comment, a pingback…</li>
<li>User friendly options page with graphical representation of your posts points.</li>
<li>Integrate WP-PostsRatings scores</li>
<li>Choose what sections you want the plugin to apply on (home, categories…)</li>
</ul>


aiXorder

aiXorder provides you the ability to reorder your posts depending on their novelty and popularity. The score calcul is fully customizable.

There Can Be Only One vs aiXorder