Which Firefly character do you find hardest to write? I find myself struggling with River. Especially in post-BDM fic because I want to show that some progress has been made in terms of her mental health, but I don't think it's appropriate to show her as being fully healed either. And in pre-BDM fic, I find it sometimes hard to capture the 'she's-crazy-but-she-kinda-makes-sense' vibe that the show's writers did so well.
River is easy for me, though I moestly write post BDM. Wash and Inara are the two I have to almost pull teeth to write--hence I usually chicken out and stick to what I'm comfortable with *g*.I agree with you on River pre-BDM, though. There's almost too much trauma there to deal with.