Drupal: Perfect for stability and complexity
Drupal may not be used as much as WordPress, but this does not mean it is not a good system. This CMS has a somewhat steeper learning curve for the user, but offers more possibilities. Basically you have the same functionalities as with WordPress, for example support for plugins, only they are called Drupal modules. The basic functionalities are more extensive with Drupal than with WordPress. For example, with Drupal you can create all kinds of your own content types and load data. In this way it is possible to build websites with large numbers of end users who have a role on the website (e.g. a forum or a website where visitors can place content themselves). It is also possible to use Drupal to create complex links with other web services such as ZOHO and Exact.
Compared to WordPress, Drupal is more stable in terms of security. There is less chance of being hacked. There are also regular updates and upgrades, but these are more difficult to install than with WordPress and require technical knowledge. We are now at Drupal 8 and in 2020 Drupal 9. Reportedly it will be easy to switch to this version and offers great prospects for the future. They are going to focus on ease of use for beginners. In this way they try to eliminate one of the biggest drawbacks.
Because the CMS runs so stable you see that websites such as the House of Representatives and RTL news on Drupal running. The by us built website of Piet Paulusma also runs on Drupal for the many traffic and the link with his weather database. Drupal is the best solution for complex websites that need to run stably.