More sophisticated view of what maximises happiness. Bentham believed actions are considered in pleasure/pain, but singer recognised that different people have different preferences and it is best to act in the best interest of those concerned
It is specist to assume humans are more valuable because they are human. Personhood can be applied to some non-human animals.
Singer emphasises that people's preferences all count equally.
My preference is no greater because it is mine.
Impartial
Considers all affected by an action
To get the greatest happiness for the greatest number of people, you must satisfy the majority's preference. People may choose to do things, not for pleasure, but because they are meaningful eg. Writing an essay. The majority of people have a preference to live in a society w/o theft.
Consequentialist
Relativist
Teleological
Eg, The value of our tastebuds does not outweigh the suffering livestock endure.
Not about maximising pleasure
Rejects the quantitative utility of Bentham
Rejects the use of the calculus
Rejects mills higher and lower pleasures
Rejects the need for competent judges
Understands judgments as subjective, hedonistic arguments/ utilitarianism see judgments as objective.
Preference Utility notices desires cannot factually be true because they are desires
Because they are subjective all desires are equal.
Strengths
Reduces all preventable suffering
Preference is easier to measure than happiness or pleasure