The North would be a fully socialst/communist state. The South would be a free market economy pre-1930’s type America.
I should have laid out some parameters to begin with. For the sake of arguement, let's assume the Confederacy won their independence on the battlefield and that for the most part the rest of history remained constant. In that scenarion the Great Depression still happens. Some of the strongest supporters of FDRs policies came from the South. Men like Huey Long, LBJ, Sam Rayburn, all went for the Democrats New Deal plans hook, line, and sinker. What's to say that given the economic conditions an FDR election wouldn't have been matched by a Huey Long election? Under those circumstances one could easily see the Confederacy with many of the same kind of programs the U.S. implemented. And with the strong president-weak judiciary precedent set by Jefferson Davis then it's possible that the excesses could have been even worse, couldn't it?