1984 Response 3

I do believe that Big Brother has won, because at the end of book it says, "He had won the victory over himself. He loved Big Brother (245)". This shows how Winston wasn't a traitor against Big Brother anymore, and he loved him because of it.
A way how the One State can be brought down is by an entire revolt by the people. If there was a revolt by ALL the people, then they could outnumber and overrun the members of the Party who were "leaders" of the society, especially if the proles led the revolt. The book mentions that "If there was hope, it must lie in the proles, because only there, in those swarming disregarded masses, eighty-five per cent of the population of Oceania, could the force to destroy the Party ever be generated. The Party could not be overthrown from within (60)". This shows how the only plan that could work would be a mass outside revolt.
At the end of the novel, I believe that Winston has finally fully succumbed to the Party, without even realizing how bad that was. I think that he believes that he finally found the light, and it was in Big Brother. In one of his dreams, author George Orwell writes that "He was back in the Ministry of Love, with everything forgiven, his soul white as snow (244)" This shows how he had changed, and for the better in his mind, as his soul wasn't darkened by his previous thoughts against Big Brother and the Party.