I am drawn to writing and directing as it is most like the feeling I had when I was a teenager with my puppet theatre. You are more in control of everything and involved in every aspect of production, so more challenged and fulfilled. ↗
I suppose directing on set is the most fun because it's a good crack and you feel you're on the battlefield whereas writing is a fairly solitary undertaking. ↗
It's not easy to strap yourself down to a desk and bash on a keyboard when you know you can direct lots of films, because directing films is fun and interactive and gregarious. Writing isn't. ↗