The battle of Stalingrad was the major turning point.
The main difference between both nations was their political views. America was and is a capitalist country and as we know has many freedoms. The Soviet Union on the other hand was a Communist country that gave no rights to its citizens. The United States wasn't happy with that. Also, after WWll, the U.S. provided aid to war torn European countries with the Marshall Plan but the Soviet Union hated this because they wanted to take over those countries.
hmm thats a tough one because an effective leader would need a little of both to know what to do in the times of crisis and then follow through with his plan.
How they will get more revanue I think one is