I have converted over from blogger to movabletype !! I played with MT for a while, and finally decided bit the bullet and convert my main blog over to MT2.21. There are many reasons for the conversion:

The MT people seems very nice reading their stuff on their sites.
The UI is pretty (these Mac people)
Multiple file generation so that I can build a "whats_new" page, and
categories !! so that I can let you, the reader, filter what you want to read or jump right to the good stuff...
It works in the Opera browser
more to come...

It is amazing that I am using this since it is written in (yuck) Perl.