Winston and O'Brien
When O'Brien states that Winston is the last human, he doesn’t mean literally. What O'Brien is saying is that Winston is last human with sanity who can see through all of the crap that the part does. Everyone else will never do anything about it and are too scared too. It basically goes back to a saying in V for Vendetta, which is that the government should be afraid of the people, not the other way around. So in all reality, Winston is the only human that has kept his self and his soul. Winston is an archetype because he knows that they will never be able to beat all these things and take all the pleasure out of life. He also knows that there have to be others like him and he represents those people in a very good way.
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