I've been using Sublime Text 3 for probably 2-3 years now at work (and home) and I love it. The only downside is it costs money but you can use it for free as long as you don't mind a popup asking you to purchase it every 10-20 saves.

I used Notepad++ for a few years before Sublime, I eventually switched because of the lack of Notepad++ support on Linux. I didn't want to have to remember the commands/shortcuts for two editors (and I avoid using Vim if I can).