Modern GNU Emacs isn't really comparable to vim in this respect, since people use it with tons of bells and whistles. Emacs is probably better described as a "framework for building custom IDEs" than as a "text editor". Yes, vim plugins exist but my impression is that using stock vim with no plugins and only a bit of configuration is much more mainstream than doing a similar thing with emacs.
I'm sure people are out there who just use stock emacs, but I'm not sure why you would do so instead of using something simple like nano.
I'm sure people are out there who just use stock emacs, but I'm not sure why you would do so instead of using something simple like nano.