What is the best hand shake?

Could you please elaborate on the concept of "the best hand shake"? Is it referring to a specific style or technique that is universally considered as the most effective or appropriate for different situations? Or is it a subjective matter, where different individuals may have their own preferences and opinions? Additionally, if we are discussing handshakes in a professional or formal setting, are there any cultural or regional norms that should be taken into consideration? For instance, some cultures may place a higher emphasis on the firmness or duration of the handshake, while others may prioritize a more gentle or brief greeting. Ultimately, what factors do you believe contribute to a "best" hand shake, and how can one go about achieving it?