In this evaluation I looked at following services
Wordpress on the other hand is a free service and very very easy to use. It has wide verity of template to choose from and provide many good features which will be useful in long run. Like you can categorize your post which will be helpful for your readers as well as for you if you write on regular basis. You can also create sub categories which can come handful. Another nice feature for wordpress is that you can install it on your server if your server support PHP and mySql, but that would be useful only if you are advance user and keep all the data in your control. With own installation you can add and customize the solution specific to needs.
Since I am a software programmer by profession I was wanted to something more than just plain blogging( and obviously free of charge). So I continued my search and moved to next to next site in my list.
Blogger.com is another free site owned and operated by Google. It is also decent site, but not as user friendly as Wordpress. Blogger template collection also seems limited w.r.t wordpress. On the other hand blogger provides you option to edit html which is a big plus over competition specially if you know how to decode html. Blogger also have option to customize your different section to your post. e.g. you can add list of your favorite website or movies or books to it. Also it is pretty nice integration with other google services like adsense, feedburner etc. Also it doesn't block inclusion of different widgets on your page.
I finally decided to stick with Google. Mainly due to its greater integration flexibility, better customization and cost benefits.