For creating a blog just use wordpress. It is a very reliable platform for creating a blog. Wordpress includes thousands of plug-ins and themes and has lot of features that can be used to increase the functionality and improve the look of the blog.
There are many sites where you can learn about creating a blog but one such site that attracted my attention was the tutorial of http://www.openwebsitetutorials.com/1009/how-to-start-a-blog/ , where I learned how to start with a blog. A practical step by step guide that you can learn very easily.