Long story short, I am giving WordPress another try.
The main reason is that most static blog engines are awful under the usability point of view, and I really need a blog: when I do stuff I would really like to take notes but every time is a mess like “How did octopress/jekyll implement this feature? What was that?” and such.
As my blog is not a goal but a tool to me, I want something that JustWorks™. Thus, I’m going for WordPress, hosted on WordPress.com: no hassle, no maintenance, just features.