There is no one-size-fits-all answer when it comes to finding the simplest blog platform, as each blog requires different features and functionality. However, some of the most popular and widely used blogging platforms include WordPress, Blogger, Medium, and Tumblr. When choosing a platform, it is important to consider your needs and preferences. Some of the key features to look for when selecting a blog platform include: easy creation of blogs; easy management of blogs; wide variety of themes and templates available; and user-friendly interface.
Ultimately, the choice of a blog platform comes down to personal preference. However, if you are looking for a simple platform that is widely used and provides all the necessary features, WordPress should be your top priority.