Never been to any.
I did have the pleasure to meet Howard and sit in on a short couple hour speaking engagement.
Not a hint of a slick salesman, and found him to be a genuine down to earth straight talking fellow
If I was in the need of a big buck marketing package, it would be Howards all the way over JP.
I'd much rather buy something from someone who does or has run a successful operation, over a deceptive carnival barker who was a failure in the biz.
(if he ever WAS in the biz)
My choice however, would be
SFS, simply because it's tailored (from what I understand) to make your biz better, more profitable, and setting it up to get a pot of gold at the end of the rainbow when you sell out and retire
..L.T.A.