I agree that most of Revelation has already taken place, the same with Matthew 24, but I disagree with preterism. The Roman Catholic church IS anti-Christ, the great whore, etc. The Jesuits invented the two false interpretations: Futurism and Preterism during the Reformation. The Reformers were convincing people that the Harlot was the church of Rome and people were being converted in droves. Two Jesuit priests came up with these "interpretations" to fool the masses and once again take the heat off the Whore church. Futurism is more popular today, but Preterism was more popular in the 1900's.
The true, Biblical, historical and accurate interpretation of Revelation is called HISTORICISM or historicalism. It is the "interpretation" that the early church fathers ascribed to, as well as the Reformers. Matthew Henry is one famous proponent. I used to be a hardcore futurist until God opened my eyes to the truth of historicism.
I agree that preterism makes more sense than futurism however, when you see wording such as "must shortly come to pass" and "this generation", but preterism fails when they teach that Christ has already returned and that all of The Bible has been fulfilled.