I tried out Edublog today to see what features they had compared to blogger. It was very easy to use, with a few more bells and whistles available. They have an "import" feature where they can take all the posts from your blogger account and post them right onto your edublog site. The transition was pretty seamless.
For now I will mirror this blog on my edublog account and see which program I like better until I really figure out all there is to know about each blog service.