When it comes to CMS, one should choose a CMS that is designed for your unique needs; different systems are used for different reasons, such as user-friendliness, extensibility, and budget.
The following are some popular systems with descriptions of their strengths.
WordPress is the world’s most popular CMS. It has a vast, active support community and many useful plugins to extend the functionality of your site. (And if you cannot find a plugin that does what you want, it is easy to find a WordPress developer who can make one for you!) WordPress is also free and relatively simple to install. Most website developers are familiar with it so it is not hard to find an individual or agency that can work on your site. I normally recommend that small businesses use WordPress to create their websites, due to its flexibility and extensibility.
Drupal is another popular CMS. It offers many of the same benefits as WordPress, including flexibility, ease of use, and a large support community. Notably it is a more secure CMS than WordPress (safer from malicious activity); however, it doesn’t have as many plugin or theme options, which makes it less extensible.
Another popular CMS is Joomla! Out of the box, it has better SEO, security, and multilingual capabilities than WordPress; however, with the help of a few plugins, WordPress surpasses Joomla!’s capabilities.
Squarespace is a service you subscribe to monthly or annually that makes website and blog creation an easy “drag and drop” experience. It includes website design, development, software maintenance, metrics, domain name with annual purchase, SSL security, 24/7 support, and unlimited bandwidth and storage hosting all in one package. It is especially suitable for creatives and provides you with top-notch design templates.
There is a much smaller learning curve with Squarespace than with WordPress, Drupal, and Joomla!, but it doesn’t have nearly as many extensibility options.
Wix is very similar to Squarespace, but it is a bit more user-friendly. It offers a monthly, but not annual, subscription and includes similar features. Wix is also a drag-and-drop builder—you can freely drag and drop elements anywhere on the page; in comparison, Squarespace is more structured in where you can drag and drop on the page. The learning curve to using Wix is even shorter than Squarespace, so if you need to publish a site quickly, this may be your best option.