The hell with Jekyll and Hyde and Cactus. There is something far better. Too bad they couldn't pick a cool name for it. It's called mynt. From what I have seen of it so far, the only thing that sucks about it is the name.
None of the big names mentioned above worked out of the box when used with the dump of my photo blog's posts. The dump was generated with the WP to Jekyll exporter. Mynt on the other hand had no problems and even processed the whole set of files rather quickly without any complaints.
Another plus point is that that their template language is Jinja which is an even more powerfull system than the default template engine for Django. Now after a lengthy delay, I am finally one step closer to getting rid of Wordpress.