When comparing Joomla! vs Grav CMS, the Slant community recommends Grav CMS for most people. In the question“What is the fastest CMS for web content (news website with some static pages) ?” Grav CMS is ranked 2nd while Joomla! is ranked 8th. The most important reason people chose Grav CMS is:
Very fast, easy to update, - has admin panel for noobies or just edit markdown files for posts.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Highly customizable templates
Joomla allows for heavily customizable templates to be changed from the admin interface without needing to hack.
Pro Powerful and user-friendly admin interface
Admin interface is constantly being iterated on to remove unnecessary legacy features and to streamline the interface. Resulting in a very clean and easy to understand interface that also offers a wide range of options.
Pro More than 8000 extensions
Which can be found here.
Pro Easy to pick up
Pro Great for social networking and commerce sites
Joomla has both a good native support and a great list of extensions that make creating either a social networking or a commerce site easy.
Pro Fast, easy to use
Very fast, easy to update, - has admin panel for noobies or just edit markdown files for posts.
Pro Does not use any database, a complete flat Elise CMS
Database being a point of vulnerability is completely removed from the equation with it's flat file approach.
Cons
Con Insecure
It's common-place for a Joomla-based website to be defaced, often very quickly. This is most often due to the low quality of extensions.
Con Extensions are scarce, badly maintained & rarely good
If it's not part of the default Joomla installation, quality extensions are rare. Joomla has a extensions library, but it is full of abandoned, dated or bloated components, modules and plugins.
Con Not User Friendly
Require some technical knowledge to use