The 24-year-old lives and breathes Wordpress, so it's no surprise that version 2.7 is the best yet. Not only has the dashboard been completely redesigned, but you can drag and drop elements to customize it any way you want. Mullenweg promises that the new Wordpress is more productive: maneuvering around the system is faster, and you can even delete modules that you don't use. Don't like upgrading? 2.7 has an automatic upgrader.
If you want to start a blog, give Wordpress a try. In the past three years, it's taught me more about publishing and programming than anything else.
The ZDNet blog network runs on an older version of Wordpress (2.1.3 to be exact, with many custom functions), but we will soon be upgrading.
Update: As of 3:30 p.m. PST, Wordpress 2.7 has been downloaded over 100,000 times.