i know this is a crazy question but which one makes the loudest noise ....i love the sound of the S/C when u get down on it i never heard a turbos sound though

 

Positive displacement superchargers(Eaton, KB's etc) generally are louder than centri superchargers or turbos, but they all have unique sounds. A turbo car sounds like a turbo car etc

 

Like 67mustang302 said, they all have unique sounds. The superchargers, in my opinon, sound meaner-- and a lot more muscley.
It's all about what you prefer.

I'd get a supercharger -- VROOM VROOM! Blum-blum-blum-blum.... Ahh-- heaven.