I found an interesting website that I'm sure any blogger will enjoy visiting. BloggingTips.com has beginner's guides, books, forums, useful links and more.
But most importanly they have a post called - you guessed it Blogger or Wordpress. After all, this is why you came here, isn't it? I want you to hear it from all of the blogging authorities, not just me.
Blogger or Wordpress provides the pros and cons of both formats to help you make the decision to migrate or stay right where you are.
The posts on this site are great for retweeting too.
Have a blessed day and stop back soon.