If you find WordPress too complicated, you can stop right here. The Joomla! CMS definitely has some nifty features built right in, most importantly, management for multilingual web pages – but it’s complicated! While WordPress sometimes almost feels like a website builder for beginners, you’ll find Joomla! much more complex. Just look at the screenshots below.
WordPress (either version) is a blog-focused content management system that accepts plug-ins and themes that extend its capabilities to what most of what the other products here offer, including commerce. In fact, WordPress.com uses plug-ins such as JetPack to provide many of its features. As a whole, WordPress (either .com or .org) is not as easy to use as the other options in this roundup, but if blogging and site transferability are of key importance and you don't mind digging into its weeds a bit, you should consider the platform—especially WordPress.org. Furthermore, the ability to use WordPress is a valuable skill, as some estimates say that WordPress powers 30 percent of the internet.
I agree with you that Pulse CMS offers an interesting way to go, without databases. Before moving all my sites to WP over the past two years, I had always felt reluctant to use databases: but testing WP had convinced me to go ahead. Although I do not use it at this point (I played a little bit with previous versions), I bought a Pulse CMS license, if only in order to support that interesting project. I do not rule out using it for a site some day, at least experimentally.
Just imagine Medium shuts down as did Posterous back in the days (which was a similar service). You will not necessarily lose all your content but all the SEO rankings you ever created. To get it right you need to publish on your own domain name and preferably on your root domain (www.yoursite.com/blog) and not a sub-domain (blog.yoursite.com). This has numerous SEO advantages. Oberlo Alternative for WordPress and WooCommerce + Discount Code