I am a blogger for three years and I transferred one of my blogs from blogspot to wordpress because I can tweak wordpress easily. Blogging is very popular because it can generate more traffic than an ordinary website. If you have a business and you want to capture more potential customers then you need to open a blog. There are many free blog websites but they have pros and cons and in fact you cannot tweak them. Wordpress is an open source which means that it is for everybody and made by different programmers. Plugins is the best thing in wordpress and in fact they are very useful in blogging to improve the blog visibility. It can also help your blog gain more readers by bookmark and subscription.
If you are using wordpress, you can manipulate it and in fact it is easy to use too. All blogs has domain name too so you need to find a good host for your wordpress so that you can put your html script, ads and other widget. If you are blogging with wordpress hosting, it is only a click away. Some webhosting today is very hard to use if you are using wordpress but there webhosting that made such thing easy for you. In fact you can do it with one click only.
If you want to have a blog that you can call your own 100% then use wordpress and find a good webhosting today.