Correct way to support a pipe run parallel to floor joists
whichever way you support the pipes, both types of piping will expand and contract. (The copper will expand the most). When they do, they will make creaking noises that will be permanent if the space is covered with dry wall or any other finish product. Any pipe in contact with wood or any hard object will make noise so I would use only connectors, hangers, clamps, etc.  that have a rubber type insulator to keep the pipe from contact with any hard material. A pipe passing through a wooden item will also make noise so use caution and install a rubber sleeve, even if you have to make one yourself with flat rubber gasket material. And use products that are compatible with the type of metal you are supporting; (copper for copper and metal with metal).Only protection and prevention will stop the noise from happening. Hope this helps.