On March 23, 2018, a dangerous, privacy destroying piece of legislation was deceitfully signed into law in the US that affects everybody globally. The CLOUD Act was quietly hidden in the 2,232 page omnibus spending bill. Senators had 24 hours to review the bill. Almost none did. There was no argument, no debate, no analysis. This dangerous legislation is now law.
Actually, neither. Wordpress and Joomla are the most popular open source CMS packages at the moment. But the thing that really makes the difference is the web designer / developer, not the CMS.
The open source framework of Joomla! and other community supported CMS packages like Drupal, Wordpress, Magento, etc come with a virtual promise of DIY website success - but often the results you will get in using cheap web developers are on a par with what you spend.