Use what makes you happy/gets the job done. I'm bep and one of the Hugo core devs, so I'm biased.

But I'm also a heavy Hugo user.

For me speed is very important. And with Hugo's great live reload, the editing of content and styles while getting instant feedback in the browser, it doesn't get much better than that.

Hugo 0.17 was released two days ago with native multilingual support. Important for some bloggers, but a pretty huge thing for documentation sites.