Good question. I dare to say EVIL is best Vim alternative. It's 98% percent there. But it felt wrong using Vim in Emacs. Then I wasn't using Vim nor Emacs, because I would mix commands from both (sometimes I would use C-s sometimes /?). So I told myself, if I felt comfortable using Vim, then why don't I try and learn Emacs so I can be comfortable in it too? And now after 6 months in Emacs I got to that standard productivity point in terms of navigating and chunking out the code. But the best aspect of Emacs for me personaly is, I want to do something with text, I just select it, press M-x, enter the word(noun,verb of thing I want to do with it) press TAB, see list of available commands and voila! It amazes me how many options there are in Emacs! Wonderful really!