After some consideration and thoughts on RED JOHN, partridge does not have the power to recruit anyone. he father maybe but not him. Stiles is the only one with the charisma and charm to recruit so many people and get so many people to follow him and LOVE HIM so loyally. I mean even van pelt was close to selling her soul. Red John has to be either related to Stiles OR is the his son. There's no two ways about it. Noone else has the smarts, and the ability to brainwash so many people. It's him or his son and I won't find believable if it's anyone else, unless the back story is actually shown and unless we see the personlaity of the said person change completely in front of our eyes. 

Also thinking about it, Rigbsy could not be REDJOHN unless both him and van pelt were in on it. Where would they get the time to disappear and do REDJOHN related things, you know keep the brainwashing business going etc.

So ya STILES or his SON with STILES doing the recruiting. Not one of the 5 on their own. That wouldn't wash with me. None of them seem to have any charm. This is RedJohn were are talking about. I don't see the sheriff doing all those things, or SMITH. Haffner maybe but with a personality change.