Which is better?

Hello my fellow posters,I am a regular blogger. All of my blogs are on bloggers domain. Recently I read a article which suggests Wordpress blogs are more search engine friendly than blogger's blog. What do you think about it? Thanks in advance.

wordpress only for those who make good blog not spam blog (blogger for spam blog)
but wordpress have an option linking to your domain too normal.

Some say the same yes wordpress is search engine friend