Considering that this is a videogame, the only real method that we have for knowing our crewmen, is by their names. That fact alone, makes me want to have a very deep and comphrehensive database of names, so that their is a similar variation in "personalities."
Perhaps you can already feel it, but I am very adamant about getting all of these names into SH3 Commander. It is not about getting my name in the credits or anything; I could care less... I just want my men to have more varied personalities.