FIRST AND FOREMOST, I WOULD LIKE TO SAY THAT THE IMDB LIST IS AS GOOD AS MY SHIT AFTER EATING MC SPICY. 

Secondly, its my theory. I am positively sure 99% that NONE of them in patrick house in the last episode is NOT and NEVER are RED JOHN. Not haffner, stiles, betram , mcallister, smith. Red John is a few steps AHEAD. RED JOHN is not cocky and won't make a blunt move of facing patrick in a room whereby GUNS GOT CONFISCATED AND SUDDEN BLOW UP  HAPPEN . Red John won't even let patrick command him to expose their body just to check for tattoos. He won't even need his accomplices in that room when facing patrick.  Come on, do you guys even understand what's red john personality like? Hes artistic , a showman, who proudly shows his art of killing. The sad face, symbol for red john must always be seen, which shows misery and sadness, afterwards we know there's death. He's simply a personification of death like how Heller said. He obviously knows the way of killing and how to cover up his tracks. THAT IS RED JOHN. Red john is not a bunch of dummies in patrick's house. The last few suspects are of course connected to red john somehow but we don't know how. Stiles may be red john's father. Betram, smith and macallister may be working with red john. Haffner best fit with the description of red john but his personility is nowhere near red john's. I mean who knows but definitively if you are smart and good in psychology of reading human behaviors and personality, you will know none of them is not red john. Which makes us left with KIRKLAND, PATRIDGE AND THE FUCK UP IMDB LIST- WALTER MASHBURN. I put my bet mostly on Patridge. He is definitively good in most aspects of personality and description plus he enjoys solving death scenes. Anyway i don't mind the other 2 and i would also bet on them. I just don't care who is red john. WHAT I CARE IS WHY AND HOW IS HE RED JOHN?  THATS THE QUESTION MAN. thanks for reading mentalist lovers :)

RED JOHN FTW