Odrade makes some really good points.
If there was an honorable way to simply resign from the organization, many would have done so long ago. In some ways, it's like being in the Mafia. Once in, you can never leave... alive, anyway. With a few aberrant examples, JW's don't actually kill you when you want to leave. But they consider you as good as dead, and even families are supposed to have as little contact with you as possible.
The closest thing to an honorable departure, it seems, is to DA yourself once you come to the conclusion that the Society is not "God's organization," is teaching falsehoods, is guilty of false prophecy, or for any number of other reasons you don't want to be associated with this group. But it will be considered an honorable departure only by you, and perhaps your true friends who understand and accept your reasons for doing so. The Society and "good" JW's will vilify you and label you "apostate," and we know how apostates are viewed and treated, even by family members and former friends who are still in.
Some view DA'ing oneself as making a point, drawing a line that says from here on I do not consider myself a JW and do not wish to be viewed as supporting or associated with the organization in any way. Sort of a punctuation in one's life. Others consider it as "playing by their rules," saying you have no obligation to cooperate with their procedures or communicate with them to any degree regarding your viewpoints or actions. Both sides have valid points and neither is necessarily correct for any particular circumstance. There is no "one size fits all." Each person has to decide for oneself the best approach to take, and need not explain or defend it to anyone else.
I am neither DA'd nor DF'd, but my family and friends all know that I do not consider myself a JW and will never return to being one. I have not formally DA'd myself because, as it is, very few totally "shun" me and several maintain contact as they always have. I would lose that contact if anything "formal" happened, whether by DA'ing myself or being DF'd by the congregation. So in my case, leaving things as they are works out for the best.
I think real conflict within oneself arises when you realize you don't believe the "Truth" anymore but have to go through the motions for whatever reason. It shouldn't be that way. You should be able to resign from the organization just like you can resign from a job and keep your family and friends intact. But it doesn't work that way. The Society uses fear, coercion, and emotional blackmail to keep people locked in when they long to be free. That is no better than when religions of the not-so-distant past made converts at the point of a sword.