When comparing Wagtail vs Plone, the Slant community recommends Wagtail for most people. In the question“What are the best Python based CMSs?” Wagtail is ranked 2nd while Plone is ranked 5th. The most important reason people chose Wagtail is:
Although Wagtail comes with only the most basic features, it's by no means an incomplete CMS. It's very extendable and it's up to the developer to choose how to extend it.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Extendable
Although Wagtail comes with only the most basic features, it's by no means an incomplete CMS. It's very extendable and it's up to the developer to choose how to extend it.
Pro Lightweight with the most useful functionalities
Wagtail is a simple and lightweight CMS with the most basic and useful set of features baked in out of the box.
Pro Great separation between developers and editors
Wagtail has the perfect separation between developers and editors. It allows you to construct a site with minimal fuss with features like the awesome stream field and hand it over to virtually any content editor. You can build the site with no knowledge of Django and with the simple interface require no training to get started.
Although this will always require developer time, with 2 or 3 days you can quickly get up a boilerplate site that will fulfill 80% of any site you will develop. Leaving only the bespoke parts to do.
It also nicely slots into any Django project with no fuss.
Pro Open source
Not only does this provides complete transparency to the user, it also enables a large base of developers to work simultaneously on solving any arising the issues and improving the platform.
Pro Remarkable level of security
Plone has been around for almost two decates and to date less than 50 vulnerabilities were discovered in the platform. That's at least ten times less than any of the popular alternatives, including Wordpress, Drupal, and Joomla. In fact, government agencies, such as NASA and FBI use Plone for its high level of security.
Pro Can run on virtually anything
Plone runs on Windows, Mac, Linux, Chromebooks, RaspberryPi, servers, and cloud services.
Pro Multilingual UI and documentation
Plone platform along with all documentation is available in more than 40 languages, including Chinese, Japanese, Greek, Arabic, and Hebrew.
Cons
Con ImageChooser widgets dont fully work in sub panels
Con You need to be experienced in Django to get the most of it
Installing Wagtail on a remote server is a little more complicated than FTPing a bunch of files. Furthermore there's no ecosystem for plugins and themes so it can only be fully extended by a developer experienced with Django.