The major player in the blog game is WordPress, a content management system (CMS) that powers millions of websites, including The New York Times, Quartz, and Variety. WordPress-powered sites are incredibly easy to set up, customize, and update—ideally on a daily basis. You aren't required to learn fancy-schmancy FTP tricks (though you can certainly use them if you like), and there are ridiculous numbers of free and paid WordPress themes and WordPress plug-ins to give your website a pretty face and vastly expanded functionality. Though WordPress dominates the blogging space, it isn't the only blogging CMS of note, however.
Some site builders, such as Squarespace, Strikingly, Virb, and uKit, restrict you to placing page objects in spots that won't make your site look garish, which can be an advantage if design isn't your forte. Other builders offer more freedom; if that's what you're looking for, check out Gator or Wix. Gator in particular strikes a good balance between design freedom and reponsive restrictions.
5 Best Website Builders! Build your website easily!