Movable Type is obviously more powerful than Blogger, but you need to run the software on your own server. Blogger stores all your data for free so I still give them big ups for that.
I like MT’s comment and category features, but I haven’t taken full advantage of TrackBack yet so no comment on that. The import feature is great, but I had to do a bit of manual tweaking that could be eliminated if the power editing feature allowed me to change attributes of a group of entries at once. In order to preserve the existing post titles, MT created titles for all entries from the first words of a post which is unfortunate. Also the automatic line conversion encloses the entry in
<p> tags! :-(
If you like or dislike the new features pleasse comment about them.