For quite some time now, Mark has had some PHP code snippets just hanging around here on the site. Feeling the need to create a plugin for it and cite the documentation a little better, I did so. You may now find the, once what was just code, plugin Top 10 Posts/Views.
This plugin functions as a means to showing your top 10 posts (sorted by number of views) and displaying the total number of views on a per post basis. I have seen many sites use this code and now it is a plugin for all to use.
Update on 04/08/05: I have updated this script with better documentation and easier use of the script. Please note the documentation in the script itself at the top and you may refer to this page I have created to show some examples of the code.