The main issue with the light side capital ships is that their ultimates require most of your fleet to still be alive to be effective, while the DS ships basically require you to hang on until the ultimate can trigger. You can win with 1 ship left under executrix. I've been up 5 vs 1 and lost with Endurance because of this. But on the other hand, I've also evaded the executrix tie swarm with careful counting of turns and good timing of the damage immunity. But home1 offers no such protection, so I wouldn't choose it over executrix. Chimera has a similar, slightly weaker ultimate, but is better in general on offense.