Few studies have been done to prove that one way of coding is better than another. Not saying that there isn't a consensus of what leads to good code (tests are a good thing). I prefer functional style but someone else might prefer Java lasagna style. The ones that say that their style is better don't have any scientifc footing at all. We programmers love to say that we are so clever but we never actually try to do any studies. I hope this will change with time.