Documentation
Pricing
Joomla webhosting
Ease of use
Quite complex during the set up process than Wordprees but not as complex as drupal. There are more functionality than what wordpress can offer and could be used for medium complex situations.
Website cost
Has similar features just like wordpress so the cost may be similar for running a joomla powered website. However, there are less developers using Joomla, which could be quite expensive to get one.
Customer Support
Just like wordpress, in Joomla it is easy to communicate with official Joomla Support for any technical queries. A user can sign up for newsletter for more support options. Joomla is highly updated even than WordPress
Is the font free ?
Allows users to do much customization. WordPress.
Widgets replaced with modules, templates are equivalent of themes, and have plugins, and component. Unlike WordPress, Widgets replaced with modules, templates are equivalent of themes, and have plugins, and component. Unlike WordPress, Joomla does not have a centralized location for templates and users have to get them from other sites.
Performance
Has inbuilt performance capability making it best in performing. There are also plugins that could help users improve the performance of their sites
Security
The responsibility of ensuring the security of a Joomla site heavily relies on the user. It has security check lists that enable the level of security that the user would want the site to have.
SEO Capabilities
For a beginner, SEO for joomla sites could become a problem due to its solid functionalities like the URL.
Summary
Good for user friendly websites such as e-commerce websites and social networking sites. However it is less SEO friendly