Condensed phase QM calculations are used as a reference. OPC fitting included dielectric constant, self-diffusion coefficient, heat of vaporization, density and the position and height of the first peak in oxygen-oxygen pair distribution functions estimated at 1 bar and 298.16 K to fit the water models. Improvements over OPC models in some direction should somehow incorporate all intermolecular interactions as well as reproduce accurate property response to changes in temperature as well as pressure.