[budparr]

I've used Jekyll (quite a bit), Metalsmith, and Hugo and tested some others. They all fit a particular use-case, like Hugo is incredibly fast, Metalsmith is incredibly flexible (it's something like a Gulp for static sites), and Jekyll is well-rounded, has a large community, and has the most progress with content editors for non-technical users.

I run a site with resources for static site generators, The New Dynamic, and you can find a lot of articles on those and others there: http://www.thenewdynamic.org/