I don't know if Pelican is as popular nowadays or not...but i've used it for a few years now...and it does the trick quite nicely! I'd highly recommend it!

I think the only downside is that the project site's documentation feels like its really well done...up to a point...Like they were on a great roll documenting stuff really well, and then stopped at like ~90% completion. By this i mean that the high level stuff is well documented...but little details are missing for the last 10%...Then again, it could be that because i only use python a little here or there, that maybe that's why some things "seem" like they're missing a few details. By the way, if any project maintainers are out there, please do not take offense at my opinion here, as I value very much what the project maintainers do (i mean, i still use Pelican)!

Other than my feelings towards the documentation, if you don't need to customize too much stuff w/Pelican, then its a really great SSG.