Wordpress is best and it is most powerful and most customizable. It has a bunch of useful plugins developed by users everywhere.
I like wordpress as blogging software. It is free, easy-to-use, has the widest variety of features, extensible, and it is open source blogging software. The service offers more than 50 high-quality templates, and also makes design changes to those templates simple. It's easy to upload a custom header image, and you can choose from a small selection of sidebar widgets to drag and drop onto your blog design.
I assume most people here will recommend you Wordpress. So much plugin and themes out there that can be use and try are a few reason why people choose Wordpress over the other.
Wordpress is very simple and it is user friendly because you can find a lot of themes in the web. But if you are a advance user of HTML,CCS, and XML I prefer you to use blogger or blogspot because you can do a lot of things there.
wordpress is the best for blogging. wordpress is king for blogging software, your blog will be SE friendly with WP blogging platform.