This site has been on Blogger for about three years now. I like the flexibility and use of Java-based items. My understanding is that Wordpress may be a bit more powerful, but it really restricts the use of Java in its script. Moreover, it doesn't support 3rd party Java-apps for tracking, such as the incomparable StatCounter.
My question is, those of you who've used WordPress (and/or Blogger) what do you think of it? And, are there any serious advantages to moving over?