The "classifications" that you talk about are pretty artificial--and what stands out isn't necessarily the essence of what is there. I heard Bela Fleck explain and illustrate the be-bop elements in Earl Scruggs' banjo style twenty years or so ago, and given that he's built a fairly impressive career on it...well..

Grandpa Jones was probably one of the more widely listened to banjo pickers, owing to his recording career, and a great musician, as well--and, that aside, I am listening because of Merle. Your banjo guys are great, no doubt about it, and a lot more generally interesting to me--they are traditional players, after all--I listen old Uncle Dave more than all the BG guys put together, again, a matter of taste--