I think he is the leader (perhaps by accident) of a personality cult - yeah, quite possibly.
I came to know Peterson only because of the Cathy Newman interview, which then led me to learn about his refusing to go along with Canada's proposed compelled speech Bill. Before the Newman interview, he wasn't on my radar.
Both of these, the interview and his refusal to accept compelled speech, made me see Peterson in a good light - here he was, talking sense whilst being hounded by deranged Leftists.
I haven't seen many of his lectures - although I did watch one of his public tours, a debate vs Sam Harris, moderated by Douglas Murray.
Murray did an excellent job moderating, I thought. The actual debate between Peterson and Harris was interesting. I kinda agree with you that Peterson often takes forever to say very little. His response to Sam's question 'do you believe in God?' was ridiculous.
Is he a poseur? - yeah, probably.
Does he like the sound of his own voice? - I couldn't say for sure.
Is he a Messiah? - obviously not, although some people may be inclined to see him that way. I think this says more about the state of Western culture in general than it does about a few sad men.
We're at a point in our culture where someone like Peterson can make a career out of telling men to feel good about themselves, telling them to clean up their bedroom, etc. That's rather sad, I must say.