The quality of any golf swing can be measured by the ability to swing the club. This means without control or manipulation. Picturing a child in a playground swing should give you the right idea of this back and forth uninterrupted motion.
All correct swings have the center of rotation in the body. Pick up a club and swing it with your hands only, then add your arms and lastly with your body. The feeling is that your hands are moved by your arms and your arms by the body.
All swings should harness the natural help from centrifugal force and gravity and not overpower or avoid them. Swing correctly and as the saying goes "let the club do the work."