Underscores has become my go-to for all theme building except for ones where I use my framework, which was also, believe it or not, built with Underscores as the starting point. And of course, I've built variations of Underscores including the starter theme you all featured here last week. https://wptavern.com/underscores-for-edd-a-free-starter-theme-for-easy-digital-downloads

I like it so much that I've created a WordPress theme building course that uses Underscores as an example throughout. http://buildwpyourself.com/course My readers really connect with it.