Roi Dayan

A very simple to use google analytics plugin.
Just set your google analytics ID and you are good to go.
http://www.google.com/analytics

Very Simple Google Analytics

Aaron D. Campbell

WP Google Analytics makes it easy to track your site’s usage, with lots of 
helpful additional data.
Features:
<ul>
<li>Uses Google’s asynchronous tracking method which is faster and more reliable.</li>
<li>Automatically tracks site speed</li>
<li>Option to log outgoing links as events</li>
<li>Option to log 404 errors as events</li>
<li>Use custom variables in Google Analytics to track additional data on pageviews including:
<ul>
<li>Author</li>
<li>Categories</li>
<li>Tags</li>
<li>Context (such as home, category, post, author, etc)</li>
<li>Date</li>
<li>Logged in</li>
<li>Anything – Use the built-in filter to add your own!</li>
</ul>
</li>
<li>Allows you to ignore any user roles (administrators, editors, authors, etc)</li>
</ul>
Collaborate on the plugin: <a href="https://github.com/aaroncampbell/wp-google-analytics" rel="nofollow ugc">WP Google Analytics</a>
Brought to you by <a href="http://aarondcampbell.com/" title="WordPress Plugins" rel="nofollow ugc">Aaron D. Campbell</a>

WP Google Analytics

Lets you use Google Analytics to track your WordPress site statistics

Very Simple Google Analytics vs WP Google Analytics