I've got a lot of Lisp experience, and love Emacs' values and ecosystem. I still use neovim regularly because of a tangle security, a sound sure-footedness of action, derived from consistency and latency. It takes a combination of confident action on the users part and confident response from the machine to perpetuate the user's experience of both speed and intrusive confidence. (IMO) Emacs fails to deliver this experience plainly in latency due to the main thread blocking (even with more the 8MB of RAM). It fails partly due to the greater variety of modes and (as an evil user) lack of "core" support for Vim bindings, creating a higher sense of care and vigilance, but I really that could be over-come if one's config is kept small and the ecosystem tuned more towards robustness and optimization in visible UI, tactile UI, and multi-threading.
In favor of what, I don't know. Something that explicitly aspires to feature-parity with a modern-emacs stack (vertico/corfu/marginalia/transient/tramp), but which sacrifices some aspect of the platform's flexibility (eg. make plugins use transient and allow consistent global user prefs) to prioritize consistency, latency, and robustness for the sake of UX.
