I'm sticking with emacs for now because it is the only editor I have encountered that actually works well in conjunction with a tiling window manager; by which I mean: it works well as a single process accessed through multiple windows (here I mean "windows" as in OS windows -- internally Emacs calls this "frames") although it has features for managing panes internally, it doesn't insist that you use them and each windows is very lightweight (no thick sidebars, embedded terminal, etc that are hard or impossible to remove). Vim offers the second feature but not the first (each window is a separate process), most other editors I've encountered do not offer the second feature.
Kakoune does this too, and it’s amazing with a tiling window manager. On a big monitor, I can get 4-5 terminal emulators across, and in any of them, at any time, I can attach a kakoune client, copy and paste between buffers in different windows, edit the same file in two places at the same time, close all the clients and reattach later, and so on. Emacs is the only other editor that does this, as far as I know.
