I believe the most driving need of all is the need of belonging. For if we can find this niche at least two if not three of the other basic needs will be met as well. When one finds belonging they are generally met by love and fun. Survival and freedom are more than likely to be there as well, which leaves only one basic need to fulfill that of power. If one looks at power as the ability to control ones own destiny then finding belonging will also bring with it this power. Thus to belong is to meet all your basic human needs.