I once had a manager who tried to convert every programmer over to windows emacs. I was used to notepad++ and it had a lot of nice features emacs just didn't have. My manager was a guru at emacs and vi and couldn't find comparable features in emacs. I stuck with notepad++... but later quit that job for other reasons.
I also used JEdit... but it crashed a lot. It had a very nice GUI but is not as powerful as notepad++.