Author of Zola, who used to have sites in Pelican, here. Pelican is way more customisable, you can write Python scripts to do whatever you want. The downsides:

Author of Zola, who used to have sites in Pelican, here. Pelican is way more customisable, you can write Python scripts to do whatever you want. The downsides: you need to have a virtualenv and that it is pretty slow (especially syntax highlighting). It is awesome overall though, my favourite after Zola ;)