Except ^W performs a completely different action. I can't count the number of times after switching from a terminal to Emacs within a couple of seconds, my muscle memory still not updated, I hit ^W only to discover I've just deleted 3/4 of the file.
(global-set-key "\C-w" 'backward-kill-word)
(global-set-key "\C-x\C-k" 'kill-region)
(global-set-key "\C-c\C-k" 'kill-region)
;; https://www.reddit.com/r/emacs/comments/5jbvc3/kill_is_now_cc_ck_instead_of_cw/