graphical_force

A plugin that displays the ‘Total Minutes’, ‘Number of Logins’, and ‘Average Time in Minutes Per Login’ that each user has logged on the site. Stats can be exported to csv, and can be reset.

Log Users Stats

Display 'Total Minutes', 'Number of Logins', and 'Average Minutes Per Login' for users with an option to export to csv.

mrmist

This plugin allows you to view the full Bad Behaviour logs from within WordPress. 
It adds a couple of menu pages BBLR Options and BB Log Reader into the Options menu bar from where you can access the relevant functionality. 
Project URL : http://www.misthaven.org.uk/blog/projects/bblogreader/
Since version 1.3 it allows the viewing of the log without the warnings, and (I think) should localise the times.
Bad Behavior plugin now has its own log reader within the admin interface, so there is less need for this now. 
It pretty much comes down to which interface you prefer, and if you want the extra plugin..
<h3>Background Info</h3>
This plugin was originally developed by a chap called Simon Elvery on an old version of WP and BB and then 
updated by Jonathan Murray (http://jonathanmurray.com/wordpress/2006/07/08/wordpress-plugins/#more-893) to work with newer versions. That was a while ago. Since then I started to use WordPress (well, this weekend actually), installed Bad Behaviour, and thought “I really need to be able to see these logs without using phpmyadmin”. I then decided to write a plugin that would do that, but did a bit of hunting around first and these guys’ plugins were what I found, so I expanded on them, and this is the result.

Bad Behaviour Log Reader

This plugin allows you to view the full Bad Behaviour logs from within Wordpress.

Log Users Stats vs Bad Behaviour Log Reader