IMO Hogan definitely has the best swing. It is effortless, smooth, controlled, balanced, powerful, repeatable and consistent......in other words perfect.
I think that the reason that people refer to his swing and compare to him is because his book "The Five Fundamentals" was so well written that for the first time the golf swing made sense to alot of people and they could understand it. His idea of the swing plane was revolutionary and the first time I read about it in his book everything made perfect sense to me.
Not only that but after reading his book it made me a much better golfer.
So I guess if emulating his swing made me a better golfer and I am sure many others on this forum can say the same thing there must be something to it...