the thing about transmitting and recieving with any comm on a motorcycle (it's like a chain is only as strong as the weakest link). If all riders want good comm they all need compatible likewise systems that transmit and recieve well and the only way to do that is with quality components that are installed, matched and tuned correctly.
Agreed! Many different ways to have bike to bike comms, but the most important part is consistency and quality. Find what form works for your group...BT headsets systems, CB or GMRS/FRS then go out a get good equipment and install it properly...dont go cheap on comms. The difference between cheap and quality is very noticeable.