I agree with the lynching of Penelo today and Faris tomorrow, but the last person to go will be a tough choice.
It's down to Cid, Luneth, Rikku and me. None of us can completely prove our innocence, we just have to go with who we think it could be.
Cid seems like the easiest choice to me, his lack of replacement or modkill implies activity, yet he's obviously not here. Either he's a terrible townie (we know he can post, we've seen it), or he's scum who has played the least interesting survival tactic (hell, maybe he's a survivor).