who is the primary caretaker of the child,
who is the more fit parent,
what is the nurturing ability of the parents,
who has better judgment,
the desirability of keeping siblings together,
the wishes of the child, if of sufficient age,
the parents' lifestyles,
the parents' religion,
whether a parent will encourage or discourage visitation,
continuity of a stable environment,
the age of the child,
substance abuse or chemical addiction of a parent,
the quality of each parents' home environment,
the parental guidance each parent provides for the child,
the ability of each parent to provide for the child's emotional and intellectual development,
the financial status and ability of each parent to provide for the child,
the relative fitness of the respective parents including their mental condition,
the length of time the present custody arrangement has been in effect.