I’ve just committed v1.5 for Top 10.
Top 10 will count the number of page views on your single posts on a daily as well as overall basis. You can then display the page view count on individual posts and pages as well as display a list of most popular posts based on page views.
The new version of Top 10 adds support for WordPress 2.9 thumbnails, with a fallback to display thumbnails using custom fields (configurable) and a default image in case both are missing. You can choose the location of the default image.
You can also configure the display. The default settings is an unordered list, but you can easily customize this to display an ordered list, divs, spans or just about any other HTML tag.
If you are using this plugin, do consider a donation.