In the Bhagavad Gita, there is no specific mention of any individual being considered the "best" human being. The focus of the Bhagavad Gita is on spiritual teachings and guidance to lead a righteous and meaningful life, rather than ranking individuals.
The central theme of the Bhagavad Gita is the path to self-realization and attaining spiritual enlightenment. Lord Krishna, who imparts these teachings to Prince Arjuna, emphasizes the importance of performing one's duty (dharma) without attachment to the results, surrendering to the divine will, and cultivating devotion and knowledge.
The Bhagavad Gita teaches that every individual has the potential to attain spiritual growth and realization of their true self (atman) through the practice of yoga and devotion. It is more concerned with the qualities of an individual, such as righteousness, humility, selflessness, and dedication to the path of truth and virtue.
Ultimately, the Bhagavad Gita encourages individuals to strive for self-improvement and spiritual evolution, focusing on their personal journey towards the realization of the divine rather than comparing oneself to others. The notion of the "best" human being is relative and subjective, and the Bhagavad Gita's teachings center on one's inner transformation and connection with the divine consciousness.