Was going to chime in, but seems everybody else already stated it. Makes no difference, as long as you are monitoring the temps at the shelf level. The other part of the equation becomes your personal preference.
I never realized it, till my wife pointed out I always move the fire to the left side, and cook on the right when I am going for indirect on the weber. Half of what I do is because somebody told me to do it that way, the other half is because I read it somewhere, then there is the 1/2 that I do, just because it is comfortable.