The South was fighting in its own territory.
The South had better generals than the North did at the time.
The home field advantage
wealth and manpower
The south had interior lines of communication and a railroad system to exploit this advantage by shifting troops where they were needed. The south was also on the Gulf of Mexico, which was a commonly used trading port.
The North had a 81% Advantage in bank deposits to indicate for the North over the South who had only 19%.
The US had been split into the Union (North) and the Confederacy (South)
No advantage. SC is backwards - NC is not. There is no comparison!
The south had a labor advantage over the north
One under appreciated advantage was the railway system, the north had a much vaster railway network that they contiuned to add to throughout the war and they used it to devestating effect. Where as the south didn't extend theirs anywhere near enough. The result being that the north could move troops and supplies around alot faster than the south. Not necessarily a war winner, but a massive advantage, no the less.
The North had the factories capable of making supplies and equipment for war.
The South had superior generals. It also had a powerful patriotism and a belief in the justice of its cause.
In the US Civil War, the North had a larger population and a larger industrial base with which to manufacture weapons. The opportunity of emancipating slaves and recruiting them into the army of the North was also a strategic advantage (as well as a moral advantage).