How to change the default editor in Ubuntu?

The default editor in Ubuntu is nano. But I like Vim.

$ sudo update-alternatives --config editor

And You will get the next:

There are 6 choices for the alternative editor (providing /usr/bin/editor).

  Selection    Path                    Priority   Status
------------------------------------------------------------
* 0            /bin/nano                40        auto mode
  1            /bin/ed                 -100       manual mode
  2            /bin/nano                40        manual mode
  3            /usr/bin/mcedit-debian   25        manual mode
  4            /usr/bin/vim.basic       30        manual mode
  5            /usr/bin/vim.nox         40        manual mode
  6            /usr/bin/vim.tiny        10        manual mode

Press enter to keep the current choice[*], or type selection number: 4
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/editor (editor) in manual mode. 

Select 4, in this case and that's it.