Khang Minh

This plugin allows you to highlight code syntax in your posts. It is simple, lightweight, and very easy to use with plenty of options to choose. This plugin works with both editors and won’t mangle your code format. This plugin utilizes the popular PHP syntax highlighting library – <a href="http://qbnz.com/highlighter/" rel="nofollow ugc">GeSHi</a>.
Some Features
<ul>
<li>Load the plugin only when you need it</li>
<li>Option to load media files (CSS, JS, etc.) only when needed</li>
<li>Built-in hooks for easier customization</li>
<li>A lot of options to choose (I bet you don’t need them all!)</li>
<li>Preview any snipplet of code to match your preference</li>
<li>Possibility to add more languages</li>
<li>Parse code within <code><pre></code> tag, <code><code></code> tag or using shortcode</li>
<li>Parse code within comments</li>
<li>Editor button to add code</li>
<li>Two output methods, Table or Ordered list</li>
<li>Style code globally or language-based</li>
<li>WordPress Multi-site compatible (not tested with WPMU)</li>
<li>And more…</li>
</ul>
Get in touch
<ul>
<li>I’m available at <a href="http://betterwp.net" rel="nofollow ugc">BetterWP.net</a> and you can also follow me on <a href="http://twitter.com/0dd0ne0ut" rel="nofollow ugc">Twitter</a>.</li>
<li>Check out <a href="http://feeds.feedburner.com/BetterWPnet" rel="nofollow ugc">latest WordPress Tips and Ideas</a> from BetterWP.net.</li>
</ul>
Languages
<ul>
<li>English (default)</li>
<li>Italian (it_IT) – Thanks to <a href="http://www.polslinux.it" rel="nofollow ugc">Paolo Stivanin</a>!</li>
</ul>
Please <a href="http://betterwp.net/wordpress-tips/create-pot-file-using-poedit/" rel="nofollow ugc">help translate</a> this plugin!
Visit <a href="http://betterwp.net/wordpress-plugins/bwp-syntax/" rel="nofollow ugc">Plugin’s Official Page</a> for more information!

Better WordPress Syntax Highlighter

This plugin allows you to highlight code syntax in your posts. There are plenty of options to choose.

bobbingwide

vsgloik

<ul>
<li>Use the CSS block to add custom CSS.</li>
<li>Use the GeSHi block to syntax highlight: CSS, HTML, JavaScript, jQuery, PHP, MySQL or None.</li>
</ul>
For backward compatibility:
<ul>
<li>Use the [bw_css] shortcode to add custom CSS as and when you need it.</li>
</ul>
For designers, developers and documenters [bw_css] supports echoing of the custom CSS, allowing you to document the CSS you are using. 
For readability, the CSS is processed using the Generic Syntax Highlighter (GeSHi) processing.
<ul>
<li>Use the [bw_geshi] shortcode for syntax highlighting of: CSS, HTML(5), JavaScript and jQuery, PHP and MySQL. 
Also supports language: none.</li>
</ul>
If the oik base plugin is activated
<ul>
<li>
Use the [bw_autop] shortcode to disable or re-enable WordPress’s wpautop() logic.
</li>
<li>
Use the experimental [bw_background] shortcode to display an attached image in the background.
</li>
</ul>
<h3>Further reading</h3>
If you want to read more about the oik plugins then please visit the 
<a href="https://www.oik-plugins.com/oik" rel="nofollow ugc">oik plugin</a> 
“OIK – OIK Information Kit”

oik-css

Allows internal CSS styling to be included in the content of the page.

Better WordPress Syntax Highlighter vs oik-css