Wouldn't it be boring and predictable if Red John turns out to be Stiles...I would blame laziness on the writers if they choose Stiles....I agree that he has worked with Red John but he CANNOT be Red John..........It's too obvious......After 6 years of anticipation, I would want Red John to be someone unexpected who had potential and not obvious choices like Stiles, Kirkland or even Brett Partridge.......I want bewilderment when Red John's identity is being revealed.which would then lead me to rewatch old episodes to observe Red John and his interaction with Patrick........Do not let me down....