I think it will take different approaches to reach different people. Johnny's approach will work with some people, others may take a another route. When you look at the apostles and the various methods they used, it reached the hearts of many listeners.
I think the important thing is to remain civil. It's kind of hard to say we are doing the lords work if we are using foul language and screaming our heads off (we sort of fit the caricature that they paint of opposers).
Look at the method that Ray Franz took in his book, he attacked only the thinking and sophistry of the organization. He also revealed the attitudes and character of the Governing body with out resorting to name calling. It was absolutely a powerful expose' of the society.
Also when you look at Jesus, he called the Pharisees vipers, not motherf**kers.
So little comparisons are appropriate. ;-)