Blogger or WordPress ? Choose WordPress as it helps you rank better in Google Search

This morning, I checked on my 100k2 blog ranking in Google search by typing certain combined keywords eg "100k2 money". I am surprised to find out that my 100k2 WordPress ranked better than 100k2 Blogger in Google Search Result.I first started blogging on http://www.blogger.com/ as it is free and user-friendly. Later on, I read articles which encourage people to write blog on their own paid web