Blogging Platforms

I've been playing with blogging platforms lately, seeing how easy different platforms are to install, navigate, etc....Currently I'm running the following platforms on the following sites:

Fully Integrated Platforms: (these platforms are not installed at an external web host)
Vox: kivus.vox.com
Wordpress.com: johnkivus.com
Tumblr: justsithereandcarrydisease.com

Hosted Platforms: (these platforms are installed by me at my hosted account at websitesource.com)
Wordpress: kivus.com, kivus.info
Movable Type: 37feet2inches.com
Drupal: carolinasoxfan.com

Now, at this point, I've really only installed Movable Type and Drupal, clicked around it some, and just taken a look at the UI. One of the reasons I selected each of them was that they were supposed to be highly scalable, especially in regards to community features. Thought I'm sure I don't really have a community of people reading my respective blogs are this time, I wanted to gain some experience configuring them. I'll update my impressions after I've spent more time with them.

Also, I plan on doing a fuller review of Wordpress (the installable version), since I think that has become my favorite blogging interface.