I really like Jupyter, but somehow I'm not in love with it. Like, every time I fire it up to use it for quick data analysis, I seem to inevitably end up back in sublime + bash, sending plots to disk. Am I the odd one out?

You're not the only one. I don't want notebooks, I want my own damned editor. For Atom, there is https://github.com/nteract/hydrogen which embeds Jupyter/iPython output right inside of your editor, not so different from how RStudio works.