Short Essay Question on The Self

How do philosophers differ on what "the self" is?

(Break the question down into these parts):

How are the views of the self for Socrates, Plato, and Descartes different from those of Locke, Hume, Kant, and eliminative materialists?
What are their reasons for adopting their particular views?
What objections can be raised against these views (either individually or altogether)?
How do these thinkers reply to such objections?
What difference would it make to adopt one or more of these views?