wpcraft

CasePress UpVote – posts and comments rating system.
[upvote post=123 comment=123] – Shortcode return’s upvote buttons for posts or comments, if attributes is blank – ids get’s automaticly.
[upvote_favs type=all | posts | comments ] – Shorcode return’s ids of favorited posts | comments | posts&comments, if attributes is blank – type = all.

CasePress UpVote

CasePress UpVote - posts and comments rating system.

Myeffecto

Myeffecto emotion reaction plugin is the most easily customizable plugin, available on wordpress. 
All our service, analytics, etc are free for wordpress community
<h4>Features</h4>
<ul>
<li>
Instant Visual Feedback : 
Track your visitor sentiments by one-click feedback
</li>
<li>
Share With Emotion : 
Share your blog post with emotion hashtags and emoji
</li>
<li>
Recommendation : 
Recommend post within your blogs based on visitor’s reaction
</li>
<li>
Customization : 
Customize emoticon names, look and feel
</li>
<li>
Upload : 
icons/emoji’s of your choice
</li>
</ul>
<iframe class="youtube-player" width="640" height="360" src="https://www.youtube.com/embed/GlwJOPpe6bs?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"></iframe>
<ul>
<li>Multi-language Support 
MyEffecto currently support following languages:-
<ul>
<li>English</li>
<li>Italiano</li>
<li>Español (Spanish)</li>
<li>Français (French)</li>
<li>हिन्दी (Hindi)</li>
<li>Portuguese</li>
<li>العربية (Arabic)</li>
<li>Indonesia</li>
<li>Türk (Turkish)</li>
<li>Dansk (Danish)</li>
<li>русский (Russian)</li>
<li>Deutsch (German)</li>
<li>עברית (Hebrew)</li>
<li>magyar (Hungarian)</li>
<li>日本人 (Japanese)</li>
<li>Norsk (Norwegian)</li>
<li>ภาษาไทย (Thai)</li>
<li>Română (Romanian)</li>
<li>Lietuvių (Lithuanian)</li>
<li>Ελληνικά (Greek)</li>
</ul>
</li>
</ul>
also users can customize language by using edit option in plugin configure screen
<h4>Other Features</h4>
<ul>
<li>
Custom-Widget : 
Based on user request we have provided custom widgets like Most-Voted content, trending article sidebar. We use wordpress short-code for custom-widget, For more info visit : <a href="http://www.myeffecto.com/wordpress?type=shortcode" rel="nofollow ugc">myeffecto.com/wordpress</a>
</li>
<li>
Blog Promotion : 
We provide Free Blog promotion for some selected blog’s based on category, content and type of blog. To bring more traffic to your website
</li>
</ul>
<h4>Support</h4>
Email <a href="http://www.myeffecto.com/contact" rel="nofollow ugc">support(at)myeffecto(dot)com</a> for any help. 
Our support is limited to English language at the moment. 
Support days: Monday to Friday. We will revert within 24 hours.

MyEffecto-Instant Emotion Reaction

Facebook style emoji reaction plugin, which is more customizable than any other plugin

CasePress UpVote vs MyEffecto-Instant Emotion Reaction