Sam Snead’s swing maybe the greatest ever?
This might be the greatest golf swing ever. It actually looks like his right leg crashes into his left leg. There is no sway at all, only true rotation. Watch the brim of his hat, it stays essentially parallel to the swing plane even long after the ball is gone.
This is from Shell's WWG series with Hogan. Compared to Hogan this is a much better swing than Hogan's.