LordPretender

Similar to the original native one, this plugin let you define the range of stats to retrieve. 
Also you will be able to add the category name of the post.
Finally, this widget will only display posts (and not pages too). 
This plugin read the top 100 of posts/pages and keep only the X first POSTS (X = number defined in the widget parameters). So, you can have less posts than requested.
Jetpack is required to work. 
A wordpress account and your blog must be linked.
You can find a demo here : http://www.spoils.fr/ 
The widget is named “Articles populaires” on the sidebar.

Jetpack Popular Posts

Using Jetpack stats, this widget will display the most popular posts.

CPK Web Solutions

Hinnerk Altenburg

Cron not running when you expect? This plugin may help. Also provides insight into WP-Cron exactly like the Cron View plugin.
This plugin will visit your site every minute and thereby ensure that your cron jobs run on time. It is mostly intended for people who can’t use real cron for some reason.
Note: This is the exact same plugin that was previously sold on Code Canyon.
Contributions are welcome: https://github.com/hinnerk-a/improved-cron

Improved Cron

Keep WP-Cron running every minute for scheduled tasks without actually using Cron.

Jetpack Popular Posts vs Improved Cron