I was user of vim first, then I switched to emacs, then to vim, now I'm experimenting with emacs again.
As developers we type a lot, and, at last for me, moving around in buffers and files are the biggest repetitive tasks, so I want a editor where I CAN MOVE FAST!
The motivation for experimenting with emacs again is that I fell it Ctrl leaded keybinds faster than vim, and easier to reason about.
In vim you have modes, you have insertion mode, visual mode, normal mode, what happens when you press something depends on the mode that you are, is a stateful aproach to editing. You move, enter in insert mode, edit, get out of insert mode and move again. I frequently lose my self if I miss a ESC press or something like this.
In emacs there is no mode, basically you press Ctrl with your pink and type the keystroke, like C-x C-f, C-x C-s, C-x C-c. There are keybinds where you need to release ctrl key, I hate this ones and always replace them by ones with control pressed.
I think that emacs approach is faster to think and type, but vim has another strength, to. Its commands are composable, they usually has a format . For example, to delete a line you can use dd, to delete a word dw. Plugins make use of that felling, with vim-surround plugin you can delete quotes with ds" (delete surround "), delete up to next / dt/. Delete up to previous /: dT/ and so on. So as long as you learn the moving things start to get very interesting.
Summing up, today I fell that emacs keybinds are faster for macro editing and vim commands are more powerfull for microediting
I've been using vim for the last five years so I edit thinking mainly about words, lines, surrounding, blocks, etc. Delete this line, remove quotes, replace quotes, delete word in cursor, I'm trying to findout the emacs moves for that
As a final quote I would say that, I care more about fzf than about emacs or vim, I would love to have a editor that is completely fzf based