I too like Alan Watts. But his stuff needs to be filtered IMHO. I think he's very much a product of his time. I suspect he was sensible at heart, and added the woo in order to sell more. Just a feeling I get. Because the bullshit is jarring when it shows up, in the midst of very sensible things.
I'll check out Adyashanti. Never heard the name before.
One thing that really annoys me about Gurdjieff is the "you're special" and the "universe needs you" schtick. Apart from being obvious nonsense and ass-kissing, it comes across as cultish.
It does come across as cultish nonsense, but at least that part I can understand as a sort of counterbalance to all the religious lies about human nature saturated into Western culture for centuries. We're all so busy believing that we're unworthy or need some kind of improvement or redemption, it's a breath of fresh air to say, that's not true; you're the opposite, a treasure trove of gifts to be cultivated, and not a piece of shit needing something external to make you worthy of love.
There's a guy in my fb list who goes around the world holding up a sign that says, "You're Perfect." He gets made fun of a lot, but I like his message. "Perfection" is a construct that does not translate to the whole of our humanness, but again, we're inundated with messages of our imperfection, and so his sign often catches people off guard and offers a much needed more compassionate perspective, and in my mind, more true.