Some historians write that Stalin was responsible for more deaths than Stalin. Even if this is true, people find Hitler worse for a number of reaons: Stalin basically killed people, regardless of race, generally. Hitler went out to wipe entire races of people off the face of the Earth.

People argue Stalin was just as bad of Hitler, because even though Hitler had concentration camps, Stalin had the Gulags. Obviously both were bad, but there is something much more sinister and disgusting about the Nazi's camps. Also the Gulags were primarily populated with men. Hitler's sent people to death irrespective of sex and age.