Wilson's really given you a wealth of information there. I'll add just one small piece. I've never been much into customizing the way OmniFocus styles its data, but I've been using a tweaked version of Sven Fechner's "May 4th" theme (as described
here) and his use of different font sizes to emphasize status is a clever move, I think. Stuff that is unimportant shrinks, and that which needs attention grows. Reminds me a bit of the "logarithmic calendar" my advisor used decades ago.