Top Wordpress Backup Plugins - June 2014

Online Backup for Wordpress was my go-to backup plugin for Wordpress. The interface was simple and I loved that it gave me a real-time progress bar when making a backup.  Even on a large site, a full database backup took only about a minute.   As of this writing, the plugin has not been updated since 2013-9-9, which was nine months ago, and the plugin is listed as being compatible up to Wordpress 3.6.1.  It has 363,000 downloads to date.

As of June 2014, these are the top backup plugins available for Wordpress.
See a listing of all the top plugins for Wordpress

UpdraftPlus - WordPress Backup and Restoration
4.9/5 stars
Requires: 3.2 or higher
Compatible up to: 3.9.1
Last Updated: 2014-6-2
Downloads: 921,622
(The first backup plugin listed on the Popular Plugins.)
Filesize: 2.6 MB zip.  (version 1.9.13)

BackUpWordPress
4.6/5 stars
Requires: 3.7.3 or higher
Compatible up to: 3.9.1
Last Updated: 2014-5-6
Downloads: 1,063,818
File size: 307KB (version 2.6.2)

BackWPup Free - WordPress Backup Plugin
4.3/5 stars
Requires: 3.4 or higher
Compatible up to: 3.9.1
Last Updated: 2014-4-22
Downloads: 1,295,709
File size: 2.7MB (version 3.1.2)
Note: interface appears to have a nice progress bar showing the status of the backup.
As of June 3, 2014, it is the most downloaded Backup plugin on Wordpress.org.  However, it only has a rating of 4.3/5 stars, whereas UpdraftPlus has an amazing 4.9/5 stars.