[ulisesrmzroche]

They're not exactly the same thing, actually, ctrl-c doesn't allow you to expand abbreviations and doesn't trigger the InsertLeave autocommand, but to be honest, I don't think it's that big of a deal. I go between ctrl-c and ctrl-] without thinking.

[pyre]

If you use q: or q/ to edit the command or search history, ctrl-c will close the edit buffer rather than swap out of insert mode.

[graywh]

Also, 3aa<Esc> appends 3 a's, but 3aa<C-d> appends only 1.