I already have four older siblings, three brothers and one sister. My mother aborted multiple times throughout her lifetime and lost two upon birth. On top of that, I already have two nieces and a nephew. Quite frankly, I think I have more then enough family members to contend with and my parents are already sick and tired with dealing with the children they already have.
But if, for some bizarre reason, my mother wanted to have another one, I would probably want to have a little sister. Since my sister's son lives with us and tends to be the devil incarnate, I don't think I could handle having another little boy in the house. Plus, it would probably make my sister happy, since she cried upon my birth out of disappointment that I wasn't a girl.