Just adding this article to the thread. It pretty much conveys my view on this whole sad situation. I think Dylan is telling the truth as she believes it happened. I think she really is a victim of abuse. I'm just not convinced what kind of abuse or at whose hand just yet.
Having been a big fan of both Allen AND Farrow practically my entire life, I know that the pedophile allegations simply do not fit Allen's profile, whereas the brainwashing allegations against Mia do fit her personality.
That said, I'm totally open to the possibility that he did act inappropriately with Dylan and if he did, I'll be the first to condemn him. As things stand right now, there is no way to tell what really happened and we may never find out.