In my opinion, 'The Brothers Karamazov' is Dostoevsky's best. It's a rich tapestry of family drama, religious exploration, and philosophical debates. The characters are vividly drawn, and the story tackles profound questions about faith, morality, and the nature of humanity.
Some might argue that 'Notes from Underground' is his best work. It's a short but intense exploration of a bitter and alienated man's consciousness. Dostoevsky's unique writing style really shines here, as he dissects the character's self - loathing and his complex relationship with society.