Display the most commented or most viewed posts in a tabbed widget, filter the post by date range or by category. It also includes a tags tab.
Under WP 3.6.1 it's title cann't be translated by Polylang plugin.
If not this misterious issue, I would give it 5 stars.
Fairly easy to setup and has lots of customizations to display just the content you want. You'll need some CSS skills, however, to make it match your theme.