1. Ra's Al Ghul (140 IQ) Due to his centuries of experience, and his ability to see the future.
2. The Riddler: (190 IQ) Because of his intelligence, combined with his experience and outstanding knowledge of him in various fields. As well as the high level strategic mind of him.
3. The Joker: (240 IQ) Due to: His intelligence, having graduated from 2 fields of engineering at the age of 11 minimum, and 13 as a maximum, 10 years of experience in the 2 mentioned fields, high competence in chemistry, knowledge of weaponry, natural acting talent, top level tactician, edetic memory, mind games. Long term game. Learning
4. The Prophet: (200 IQ) By: his intelligence, strategic mind, knowledge of weapons, experience as a criminal, quick learner, proficiency in chemistry. Long term game, depending on the interpretation of the timeline.
5. Mr Freeze: (180 IQ) For: his intelligence, advanced knowledge in the field, experience of several years.
6. Hugo Strange: (160 IQ) By: his intelligence, his experience, knowledge in psychology, strategic mind, deception and manipulation, knowledge in surgery and bio technology.
6 Scarecrow: (180 IQ) By: his intelligence, chemistry knowledge, and his psychological knowledge at least level
medium.
8. Penguin: (150 IQ) Talent for crime, strategic mind, experience, influence, long-term game.
9. Sofia Falcone: (155 IQ) Talent for crime, social and political knowledge, manipulation, influence, and culture.
10. Theo Galavan: (130 IQ) Experience, culture, social skills, strategic mind, manipulation, long-term game.