I have never used Moveable Type as a blogging platform. I found WordPress to be better than Blogger in many ways, and moved a large number of my sites over to WordPress (but only on my own domains). That being said, I am frequently asked what are the differences between WordPress and Moveable Type, especially for a business blogger who might experience high traffic load.
I couldn’t honestly answer that question, because I haven’t experienced the problems first hand.
Today I came across a post and thread of comments that is only just hotting up, that is strongly questioning Moveable Type’s ability to scale with high traffic load. There is a lot to be learned in the comments both for and against both platforms, and I am sure there will be more to come.
Blogger does still have some advantages, some discussed by many, and there are a few I am not sure I want to disclose.