The multiple cursor feature of Sublime is powerful and useful, but it has a drawback. When you press alt + f3, all occurrences in the file are selected, this can be a problem when you just want to replace the occurrences in a particular region.
For example here is a piece of text
I just want to replace the string "user" in the query string, not the user in keyword :user. But in Sublime you can't do that unless you add them one by one.
In this case the Emacs plugin multiple-cursors triumphs because it supports M-x mc/mark-all-in-region. You can select a region of text and only set multiple cursors in that region.