This depends upon what qualities your are talking about.
Equal: We are all human beings. We all bleed the same color.
Unequal: The following characteristics make people unequal: education level, economic status, family dynamics, and places we live.
Outside of that, people define others as lesser, equal to, or above them based upon: color of skin, religious identity/beliefs, and morality.
Therefore, a universal answer is, basically, difficult given you do not define the parameters by which you are examining.