Agree, the original Macross is far more powerfull than Battle 7.
Quick comparison between the 3 Macross class ship:
SDF-1 Macross -> Macross Cannon, Destroids, EM and beam cannons, reaction missiles, PPB , VF squadrons
Battle-7 -> Macross Cannon, reaction missiles, PPB, VF squadrons.
Quarter -> Macross Cannon, Destroids, beam cannons, reaction missiles, PPB ,VF squadrons
So, my quess is SDF-1>Quarter>Battle-7