I've always been a fan of the 50 laboratories concept of federalism. The states should be as free as possible to manage their own affairs and to succeed and fail as a result. Part of the reason I like the idea of changing how the federal government is funded by taxing the state governments instead of the people and letting the state experiment with the best way to raise the funding. Of course that also means increasing the state's influence over the Federal by amending the constitution to let the state governments to select the senators from their states. The state can then decide what selection method, election, appointment or whatever works best.