Which is best among wordpress Drupal and Blogspot for earning Online Money

Which is best among wordpress Drupal and Blogspot for earning Online Money.
 Which platform is better among wordpress and Blogspot.
Which is better between wordpress and Drupal and why?
Which will generates more revenue from ads among blogspot ,Drupal and wordpress?
 You can find your answer in this video.

This tutorial is all about online earning platform for blogger.after reading this article or watching the video you will be able to decide that as a blogger which platform will brings more revenue for you. Or you can say which is the best platform for earning online money.