I think that when you want to write, you shouldn't need to mess up with tech details of your system. It's distracting. Of course I'd like a static website for deploying, but I'd love a web gui which acts as a frontend for such generators. I think that Prose was something similar but I found it buggy/not updated, while another saas I tried(Forestry, I think?) was good but you couldn't customize everything.
Ghost is my ultimate choice until an official, core-developers supported web gui is created for jekyll, hugo, or whatever static generator lies out there.