It's best if you judge on your own,
1) Sublime works on Mac & Linux that may be its plus point, with VI mode that makes things easily searchable for the VI lover(UNIX & Linux).
http://text-editors.findthebest.com/compare/9-45/Notepad-vs-Sublime-Text
This Link is no more working so please watch this video for similar details Video
Initial observation revealed that everything else should work fine and almost similar;(with help of available plugins in notepad++)
Some Variation: Some user find plugins useful for PHP coders on that
http://codelikeapoem.com/2013/01/goodbye-notepad-hellooooo-sublime-text.html
although, there are many plugins for Notepad Plus Plus ..
I am not sure of your requirements, nor I am promoter of either of these editors :)
So, judge on basis of your requirements, this should satisfy you query...
Yes we can add that both are evolving and changing fast..