I think using a Marxist lens would be helpful in this analysis in terms of locating the "main conflict" in this novel.

Just as Marxist literary approaches look at works of literature as projections of the social, cultural, and political period from which they originate, so too is George Orwell attempting to depict what happens in a society dominated by the rich.

The result of a burgeoning capitalist system is the production of a society based on the ongoing exploitation of the masses and lack of access to full economic and political equality of the prole (the worker, who is representative of the masses). 1984 is also a prime examination of the alienation that results within the economic schemes of capitalism. Orwell is interested in promoting critical consciousness of culture—a first step towards ‘liberating’ the reader. He is adept at illuminating the subtleties of consciousness at work in the dynamic between capitalist and prole.

In employing a Marxist lens for this novel, you may want to ask the following questions:

• Are bourgeois values (competition, acquisitiveness, etc) compatible or incompatible with human happiness?
• How are classes stratified/defined in this text? Does this text reflect an economic ideology?
• What is the attitude toward labor furthered by this text?

The central conflict of the novel 1984 is Man vs. Society, which is represented by Winston Smith vs. the Party (Big Brother). In the dystopian nation of Oceania, individualism is virtually extinct, and the Party controls every aspect of society. The citizens are under constant surveillance and suffer under the oppressive regime. Throughout the novel, Winston struggles to maintain his individuality under the watchful eye of Big Brother and even attempts to undermine the Party by joining the Brotherhood. Winston is completely opposed to every aspect of society and takes enormous risks, which eventually result in his arrest and torture.

One minor conflict that is presented throughout the novel and highlights the major conflict of Man vs. Society is Man vs. Self. In the novel, Winston struggles with the decision to remain alive in the dystopian nation or rebel against the Party. Winston fears being tortured and is fully aware that he is risking his life. However, Winston is inherently motivated to oppose Big Brother regardless of the consequences. Winston's desire to remain human and exercise independence conflicts with his will to survive. The conflict between Truth vs. Propaganda also emphasizes the central conflict of the novel. Mutability of the past and the overwhelming state-sanctioned propaganda disguise the truth, which makes Winston continually question his approach to rebelling against Big Brother. Winston desperately searches for concrete evidence to prove that life was better before the Revolution but cannot attain accurate historical records. Overall, the central conflict of the novel is Man vs. Society and the minor conflicts highlight Winston's struggles against Big Brother to warn readers about the dangers of totalitarianism.