Back in the day our teaching assistance got pissed off that most people were using Emacs as if it was Notepad, and spent the rest of the programming lecture teaching how to use Emacs instead (about 1h).
Which then became my to go editor in UNIX systems, until IDEs finally became a thing on UNIX.
Common Lisp is my main language outside work (and I manage to use it for work now and then as well) and I use it with Emacs + Slime. I've been trying to get into Paredit and similar modes but they just annoy the fsck out of me.
Mind, I do use Evil so I'm getting some 'structured editing'-lite from that already.
Which then became my to go editor in UNIX systems, until IDEs finally became a thing on UNIX.