Ko Min

A plugin to site owner to add voting functionality to the blog posts. 
Using the power of the ajax, voter can have instant voting and update to top voted widget. 
It doesn’t matter voter is logged in or not. Public voting is done by tracking their IP address. 
It isn’t end here. Blog owner will have complete control over those voting feature as well as using custom 
vote button and vote text.
Features
<ol>
<li>Control voting feature via voting on/off (admin feature)</li>
<li>Control allow or disallow post author to vote his own posts (admin feature)</li>
<li>Control allow or disallow public voting (admin feature)</li>
<li>Customise vote and voted text (admin feature)</li>
<li>Customise vote and voted buttons images (admin feature)</li>
<li>Customise alert message for non logged in users (admin feature)</li>
<li>Voting logs for site administrator (admin feature)</li>
<li>Sort voting logs by vote count or voted date (admin feature)</li>
<li>Show current vote count and vote button on frontend templates</li>
<li>Compitible with almost all of the themes. You just need to call required function from your template</li>
<li>Total vote count widget</li>
<li>Top voted widget</li>
<li>Now public voting supported.</li>
<li>Now shortcode supported. e.g. [wpvoting]</li>
<li>Top voted posts list shortcode</li>
</ol>
Features in future releases
<ol>
<li>Export to CSV for admin voting logs</li>
<li>Registered user voting logs</li>
<li>Re-implement backend voting log list with WP_List_Table class</li>
</ol>
Note-1: Kindly please rate this plugin or vote the compatibility. So I could review it and improve the quality of this plugin. Appreciate your help!
Resources
http://www.garyc40.com/2010/03/5-tips-for-using-ajax-in-wordpress/
http://www.onextrapixel.com/2009/06/22/how-to-add-pagination-into-list-of-records-or-wordpress-plugin/
http://www.onextrapixel.com/2009/07/01/how-to-design-and-style-your-wordpress-plugin-admin-panel/
http://planetozh.com/blog/2009/09/top-10-most-common-coding-mistakes-in-wordpress-plugins/
https://wordpress.org/extend/plugins/vote-it-up/
https://wordpress.org/extend/plugins/shortcodes-ultimate/

WP Voting

Site owner to add voting functionality to the blog posts.

aviplugins.com

Use this plugin as a voting solution for your wordpress site. The plugin is very easy to setup and use. Just create polls and add the poll widget in the sidebar. Registered users as well as visitors of your site can submit votes. One user can submit vote only once per poll. Visitor’s votes are tracked by their IP addresses.
<ul>
<li>This is a simple user polling plugin. </li>
<li>Create polls from admin panel. Unlimited polls can be created from admin panel.</li>
<li>Add polls to the widget areas of your site. Multiple poll widgets can be added in your site. </li>
<li>Users can submit vote from frontend and view voting results.</li>
<li>Admin can view poll reports from admin panel.</li>
</ul>
<h4>WP Easy Poll PRO</h4>
In the PRO version Users will be able to create Polls from frontend of your site. 
* Polls created by users will not be visible in the site untill administrator manually add them in the Widgets or Sortcodes. This will make sure the Poll gets reviewed by administrator before published into site. 
* Administrator of the site will be Notified by Email once a new poll is created by users. Users will also get a Notification mail when new Polls are created. 
* Voting results can be Emailed to users from admin panel. 
* Admin can download voting results as CSV. 
* Choose Color for the voting bar in frontend as per your theme. 
 
Click <a href="https://www.aviplugins.com/wp-easy-poll-pro/" rel="nofollow ugc">here</a> for full details. Get it <a href="https://www.aviplugins.com/wp-easy-poll-pro/" rel="nofollow ugc">here</a> in USD 2.00
<blockquote>
Post your plugin related queries at <a href="https://www.aviplugins.com/support.php" rel="nofollow ugc">https://www.aviplugins.com/support.php</a>
</blockquote>

WP Easy Poll

This is an easy to setup polling/ voting plugin for users. Create Polls from admin panel and display in widgets.

WP Voting vs WP Easy Poll