Red John is a cool, calm and calculated individual - An equal of Patrick Jane - McAllister wasn't.

Whenever someone who had met Red John spoke about him they would suggest he has a powerful demeanor, someone you don't mess with on a personal level, someone dark and who you would truely fear and sends a shiver down your spine.

Yes, McAllister was part of the Blake Organisation but if he was truly Red John i'm quite dissapointed as he just doesn't fit into what we know about him.

Season 2 Episode 23 Red Sky in the morning:

When Jane is tied up and Red John talks to him there is no way that can be McAllisters voice, it's too young and high pitched. Brett Partidge's voice is more like this but I think the whole list of 7 may just be part of Red Johns sick game in keeping one step ahead of Jane and now that Jane is back with the FBI, Red John will return (I hope!)