We compared the microscopic structure of liquid water at ambient conditions predicted by six classical intermolecular potential models. Applying their accepted acronyms were the SPC (Simple Point Charge), SPC/E (SPC extended), MSPC/E (SPC/E modified), TIP4P (Transferable Intermolecular Potential, four point charges), TIP5P (TIP, five point charges), and the PPC (Polarizable Point Charge) interm...