WordPress Plugin Repository has a new Jetpack’s Addon Widget plugin that allows you to shows beautiful tabs of Popular Blog Posts based on Jetpack’s Stats Module, second and third tab shows recent posts and comments.
Simply install and activate Popular Posts Tabbed Widget for Jetpack plugin in your WordPress site. After activation visit Dashboard -> Appearance -> Widgets page and drag its widget to your sidebar or any other widget area. You can set the number of posts to show, thumbnail size, hide what tabs you don’t want to show etc from the widget itself. But remember this is the addon plugin of Jetpack by WordPress.Com so you should have it activated on your WordPress site with Stats Module enabled.