Blogger is a great service to get started in the world of blogging. It’s easy to use, great SEO(because it’s Google), and has a number of features and templates that allow you a wide range of flexibility with your design. You can even use a custom domain to avoid having a long “myblog.blogspot.com” URL.
There built in Adsense widgets, analytic tools and apparently unlimited bandwidth allow your blog to flourish. If you ever decide to move to WordPress or another platform it is easily exportable.
Google has created this great Video on the state of Blogger and what great features are coming soon.