We have just transitioned from a Drupal site to a WordPress site.
Why? We adopted Drupal mainly to see how well we could use it. While one of our instructors spent endless hours on it and reset the site multiple times, the final outcome was something that was not too intuitive to manage.
WordPress has turned out to be very easy to use and very feature-rich by way of using plug-ins. Well, in Drupal you had to install modules and make them work in mysterious ways. Comparatively, adding functionality to your WordPress site is very easy.
I hope this re-designed site is more useful to everyone in finding the information they are looking for.