I am still contemplating whether to Migrate my Blogger blog to WordPress. I've found out that you have to migrate to WordPress first before you can actually have your blog hosted.
I want to have my own domain and have my blog hosted for better chance of getting a higher page rank in google search. The more searchable your blog is the bigger traffic. And I want to have a big traffic for me to earn bigger in adsense.
Blogger for me is really user friendly and the interface is easy to understand. Aside from that I can tweak it anytime.