OK, let me rephrase. If I was writing an article for a magazine aimed at the masses, and had to pick the top three movies of all time, I would pick Pulp Fiction, Shawshank, and The Godfather. So they would be what I'd the consider the 3 greatest movies of all time. My 3 favourite movies of all time would differ however.Basically, I think there's a difference between the question "what are you 3 favourite movies?" and "what do you think are the 3 greatest movies ever made?". The first question is asking your totally subjective opinion, whereas the second question is asking you to judge it a bit more objectively.
That you think Pulp Fiction and Shawshank are two of the greatest movies of all time is the opposite of objective. IE it's a completely subjective opinion.