Archinist.
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An Executor-class Star Dreadnought from Star Wars Legends goes up against the Abyss-class Super-Battleship Blessed Lady from Warhammer 40k. They start out one Astronomical Unit apart, two light-years from our solar system. Both are bloodlusted. Use high-end feats for both ships. A ship gains victory if it is still functional (i.e., has life support, can enter hyperspace/the Warp, and can move around) and the other ship is scuttled.
Who wins?