We establish the equivalence of the Maxwell-Chern-Simons-Proca model to a d
oublet of Maxwell-Chern-Simons models defined in a variety of covariant gau
ges. This equivalence is shown to hold at the level of polarization vectors
of the basic fields. The analysis is done in both Lagrangian and Hamiltoni
an formalisms and compatible results are obtained. A similar equivalence wi
th a doublet of self and anti-self dual models is briefly discussed.