Why did the framers chose to create a federal system rather than give more power to the central government or to the state governments?

The Framers who created the United States Constitution chose the idea of Federalism because they wanted a government that was able to unify a belief within the states without diminishing each states' ability to control itself. Federalism made the most sense because it allowed the states to be controlled by the government while still being able to control their own affairs.