Meitar

Provides a simple-to-use widget and, if you want to use them, two template tags (theme functions): <code>wp_janesguide_award()</code> and <code>wp_janesguide_icon()</code>. These functions display an image of one of two awards in the case of the former or a generic JanesGuide.com linkback icon in the case of the latter. The widget can display any of these three options.
Use <code>wp_janesguide_award()</code> if your site has received a “quality” (default) or a “quality and original” review from JanesGuide.com. For instance, to display a “quality and original” award icon, use code like this:
<pre><code><?php wp_janesguide_award('originalquality');?> </code></pre>
Another version of the “quality and original” award icon can be used like this:
<pre><code><?php wp_janesguide_award('originalquality2');?> </code></pre>
To display the ‘quality’ icon, use:
<pre><code><?php wp_janesguide_award();?> </code></pre>
These template tags will produce a linked image. You can customize the destination of the link by going to the JanesGuide Settings page in your WordPress Admin screens.
If you have not received a JanesGuide review yet, use:
<pre><code><?php wp_janesguide_icon();?> </code></pre>

WP-JanesGuide

Easily enables the display of JanesGuide.com review awards on your WordPress-generated pages via a widget or template tags.

Techspawn

BuddyBadges turns your WordPress site into an achievement & badge system. According to ‘Post’ & ‘Comment’ your users can earn digital badges. Admin can easily defined the badges according to points. BuddyBadges is extremely powerful and infinitely extensible.Given are some of the features of ‘BuddyBadges’ plugin.
Many ways to define achievements and give badges
<ol>
<li>You can give badges to only posts.</li>
<li>You can give badges to only comments.</li>
<li>You can give badges to posts and comments.</li>
</ol>
Buddybadge guide
1) To display all the default badges :- a. To display all badges on use a [displayAllBadgeUser] short-code. 
 b. Related to post the user and badges is display. c. This code is apply only for post.
2) To display all the badges related to post and comment a. To display all badges on use a [displayPostCommentBadge] short-code. 
 b. This is apply only for post and comment.
3) To display badges related to post a.To show only post related badges use a short-code [displayAllBadgeUser bbtype=’post’]. 
 b.This code display all the user regarding to post count. c.if any user can insert most of post related to other user then that user give a badge.
4) To display particular user badges related to post 
 a.To show only particular user related post badges use a short-code [displayAllBadgeUser bbuserid=’User name’ bbtype=’post’]. 
 b.If you display only a particular user badge just insert a name on badge and get a result.
5) To display badges related to comment a.To show only comment related badges use a short-code [displayAllBadgeUser bbtype=’comment’]. 
 b.This code display all the user regarding to comment.
6) To display particular user badges related to comment a.To show only particular user related comment badges use a short-code [displayAllBadgeUser bbuserid=’User name’ bbtype=’comment’]. 
 b.This code display only particular user related comment badge.
7) To display badges related to post and comment a.To show both post and comment related badges use a short-code [displayPostCommentBadge bbcommentlimit=’1′]. 
 b.This code display all the user regarding to post and comment.
8) To display badges related to post and comment a.To show only particular user related post and comment badges use a short-code [displayPostCommentBadge bbuserid=’user name’ bbcommentlimit=’1′]. 
 b.This code display only particular user related post and comment badge. 
 c.Here ‘bbcommentlimit’ is used for dividing total comment count to bbcommentlimit and round number is used for deciding for position for count. if you increate a ‘bbcommentlimit’ then the comment count decrease

buddybadges

Buddybadges turn your side into achievement and badging system. Easily create badges according to its given point.

WP-JanesGuide vs buddybadges