What are the classics/giants in Systematic Theology?

Two of the popular ways of analyzing the Bible are: Biblical Theology and Systematic Theology. Based on [Biblical Theology vs Systematic Theology] [1] , Biblical Theology focuses more on verses; whereas Systematic Theology focuses more on topics. Who are the giants in Systematic Theology? What are the classics / great works in Systematic Theology? See also: Related question on Biblical Theology .