The more discussion
Kent Beck, software development expert, said in a course I attended, that he often found the following to be true.
The more discussion there is about something, the less important it is. Everyone agrees about the really important ones.
Obviously, it is not always true, but in many cases it is. People can get into almost religious wars about things like which brand of sports car is the best even though most of them are really similar, and any of them would be a great car.