The main reason I dislike the tierlists posted in this thread is because the logic / methodology is inconsistent and a lot is based on bias. If I were to make a tier list I'd divide players into tier A [generally good at mafia], tier B [good but inconsistent / alignment dependant], tier C [potentially good] and the rest which I don't think I'm going into detail about. All players in the same tier are about equally good so I just order them alphabetically ...
A: EE, J, July, Kuz, Vanderzant
B: Brosuke, Gheb, Overswarm, Ryker, Sangfroid, Swiss, Sworddancer
C: Asdioh, Circus, Raziek, T-Block