Scimatars the the best, not just for the high points, but because its also the easiest. 1 Tarantala Dreadnaught as a defense. I hit it with Engery Siphon, Tractor Beam, and Feedback Pulse, and fighters, then torp high yield Transphasics, cannon rapid fire plus DEM and Emergancy Power to weapons and transphasic mines. Its doesn't stand a chance. Quick and super easy.
I don't even bother killing things any longer, it is easier to just release the ships and they despawn once the ship leaves.