An unfinished Death Star would be in trouble. In "Obsession" Kirk had Scotty drain off some of the engines' antimatter and enclose it in a magnetic bottle so that they could use it as a weapon. It was the equivalent of 10,000 nuclear bombs. Normally I'd side with the Empire, but without shields this Death Star is in trouble.
Borg, "We are a species legendary for our ability to adjust our shields and weapons to negate our enemies' offense and defense and absorb their technology and tactics to make use of it ourselves, we are a single consciousness of a billion billion minds subsumed to the Collective will. So why the heck is there a Star Trek/Star Wars fic where we lose to the empire to the billions and it somehow takes us overwhelming losses to begin to think something isn't right?"