Thanks for the replies so far - I hope other people are also taking the chance to discover new sources of inspiration or wisdom.
Like most of you so far, I'm not overly into gear vlogs (just as well, being a Pentaxian
) -I do think Northrup is good there though.
I've watched a reasonable number of Sean Tucker's and I like his thoughtful approach, though the area he shines, studio portraiture, isn't one of my particular interests.
Thomas Heaton - I think he's beginning to suffer from the strain of producing two vids a week, but he's always watchable - indeed I have watched almost everything he's done. I think his strength is as an everyman photographer - he can teach, and more importantly inspire you to be as good a photographer as he is - ie quite good - and he's a very good videographer.
I have watched and enjoyed a reasonable number of Ted Forbes Art of Photography which is indeed good food for thought often from another person who isn't just a YouTube phenomenon.
I certainly intend to catch up with the suggestions here - and maybe feed in a few more of my B list