A - The characters are going to be at best a couple inches high, anyway, and unless there is an option not to display helmets, hair and faces will be mostly irrelevant. There might as well be customization for the few times you actually see your characters up close, like maybe in the equipment window.
Option B would make sense if there were a lot of closeups during conversations (not the case in what I have seen so far, and I'm not sure if zooming in would work well) or cutscenes.
