I don't think it's useful to give more than generic settings and general tips for high quality renders. Every scene is unique. If you want to bring out the best in your scene, you should let it tell you how it wants to be rendered - by looking at your scene very carefully and by trying many (small area) experimental renders. And several small and barely noticeable tweaks can add up to a significant improvement. Applying someone else's "render formula" won't give you the best result, nor teach you as much, as lots of experimenting. Of course commercial workers have to meet deadlines, but they should still do at least one intensive and perfectionistic experimental render for learning purposes, IMO.