The main two things Wordress has on static generated blogs at the moment are their current community and the editing experience. The editing is of course by design. I have heard that prose.io[0] is nice, but have never worked with it. Essentially webhooked github for cms-free blogs. To me, that seems like the way we should be going.
edit: add link, their site is mainly for access [0] https://github.com/prose/prose