I selected hugo over other static site generators because the hugo engine is based on golang. There is good support available, plus it is easy to maintain and instead of managing the site you can concentrate on writing blogs.

I use the render hooks feature of Hugo to generate srcset attributes for my images. I don't see render hooks in many other SSGs.

Downsides of Hugo are the documentation isn't great and the go templating language is quirky. I suspect that poor documentation is a common issue for many static site generators.