Evaluating the accuracy or suitability of a given charge derivation approach is difficult in that it is unclear what the "optimal" set of partial atomic charges for a given molecule should be. In reality, partial atomic charges are not a physical observable in any experiment. In addition, fixed-charge force fields necessarily neglect a great deal of physics from their description of nonbonded interactions and therefore depend on some amount of error cancellation to return accurate results. Nonetheless, we posit that there are at least three desirable properties for any charge derivation method to be used for fixed-charge molecular simulations in the condensed phase: