Homer Kelley - he was the first to document all the pieces of the puzzle
Ben Doyle - he can show the pieces in a way that can be understood and is clear to most
Ben Hogan - his book has ALL the pieces for one picture of the swing, despite not being as clear, all he needed to add\convey was an understanding of lag and pressure points IMO
Morris, Ernest Jones, Toski - old school, but at the head of the pack
Knudson/Moe Norman - no one has the swing down the the basics better than they do (I'd add E. Jones there too) - because they both understood that balance and a swinging force was the glue that holds it all together
And special mention to folks like Hebron, who have created collections of swing knowledge over time, and shared them in their books.