It may contain spoilers.
Not too long ago, I believed Light was the greatest mastermind. I kinda hate to say it, but Johan makes Light look like a kid. Not to mention, Light had the power of supernatural beings. Johan was always alone, and managed to drag everyone to kill themselves. What makes Johan great is, he never trusts anyone. He never went crazy like Light did. I like Light, but I admit he became a mass murderer. He started to kill innocent people. In the other hand, Johan manipulated people with his own intelligence, he is a more developed than Light. Johan's past was very tragic though, and completely "supports" what Johan became. He is portrayed as the Anti christ.
Not too long ago, I believed Light was the greatest mastermind. I kinda hate to say it, but Johan makes Light look like a kid. Not to mention, Light had the power of supernatural beings. Johan was always alone, and managed to drag everyone to kill themselves. What makes Johan great is, he never trusts anyone. He never went crazy like Light did. I like Light, but I admit he became a mass murderer. He started to kill innocent people. In the other hand, Johan manipulated people with his own intelligence, he is a more developed than Light. Johan's past was very tragic though, and completely "supports" what Johan became. He is portrayed as the Anti christ.