While doing some maintenance work on a couple of sites, I realized that the most important stack for me is… the Group stack (part of Foundry by @Elixir) - or Pen (free) by @joeworkman or a simple container stack as the base “1 Column” stack.
Grouping stacks and hiding the content while editing keeps the editor clean and tidy and helps focusing. As a benefit, you can also quickly hide elements on the page or have different content elements for desktop and mobile (e.g. different columns or paragraphs for desktop and mobile).
1 Column is different than (at least) my Pen stack. I cannot speak about others. Pen outputs zero code into the published page. It’s as if it doesn’t exist at all on the page.