I have to use vi from time to time but I prefer emacs. There are a lot of people where I work that use vi first and other things second.
Whilst I do indeed prefer VI over Emacs... I was mostly just joking about that age old argument. It's just a case of preference. Though I find it a bit ridiculous how big emacs has gotten... It's got both Pong and Tetris built in... Next up, the kitchen sink.
Anyways, in the end it's irrelevant cause of course nano beats both