Descartes and Leibniz

what are the main differences in the philosophies of Descartes and Leibniz?
give an outline account of both, compare and contrast them. Address the question of substance, perfection and individuation. Which

philosophy do you find more compelling, and why? What is their idea of the self,individual, or singularity? How does the self relate to

the other and to the surrounding world according to each of them? Required books:Descartes”Meditation on First Philosophy” and Leibniz:

“Discourse on Metaphysics