feel free to list other window managers you’ve used.
I have been happy with bspwm, but considering trying something else. I love its simplicity and immense customizability. I like that it is shell scriptable, but it is not a deal breaker feature for me.
I like how the binary split model makes any custom partition possible.
I used StumpWM for many years. It was great for most of my workflow and, being written in Common Lisp, you can recompile parts of it while it’s running (I didn’t do this often but it was a cool feature).