Heavy charged bosons, with masses in the range of a few TeV, are a characteristic of several extensions of the Standard Model fields. They could either be embedded in a Standard Model gauge structure or an extended gauge symmetry. Depending on the underlying gauge structure of the model the associated fermion content is also different. We make here the first attempt at finding empirical discriminants which would tell these models apart. Demonstrating the power of simple kinematic observables involving same-sign leptons, we construct simple yet powerful statistical discriminants.