I'd actually disagree about Michael & Paula. They're not for people who are still experimenting and exploring. They're the go-to folks for someone who has a very specific vision of where they want to go, and needs someone to help get them on the way to it. They represent a version of "The One True Way", and as such have the ability to turn off as many people as they inspire.
I've spent enough time with them, Scott, both in and out of workshops, to state that your characterization of them is 100% Dead Wrong.