I just transferred everything from my old Wordpress log to Blogger.
Why? I am lazy. I just don't enjoy having to frequently update or upgrade my Wordpress installation to handle security updates, etc.
Why Blogger? Why not? It's reliable, I don't have to update the software, and millions of users can't be wrong, can they? Heck, I can even edit the look and feel of the blog if I like (once I stop procrastinating and start doing it).