I used emacs full-time for many many years. Then I switched to Vim or other editors with Vim modes, also for many years. I have to be honest, I don’t see a particularly clear winner between them. Model editing is a bit unusual in many ways. There are some things that it certainly makes easier, but I personally found that the overall process of editing and writing code in real time for me was more efficient in a single mode emacs.
My vim muscle memory has paid off more for me than my emacs muscle memory. Emacs was the better editor, though. Anything that doesn't have Vimscript is an automatic winner IMO.
> I don’t see a particularly clear winner between them
Because deep down they are incomparable categorically. Separate the tools from the foundational ideas and you see the very different value. Vim-model of text navigation is fantastic, practical, brilliant idea. Once you grok it - you can take it anywhere. You can use it in your editor, browser, terminal, WM. Emacs is rooted in another, even more brilliant idea of practical notation for lambda calculus. These ideas have no overlap. But understanding the philosophy of each (ideally both) could open so many different possibilities.