i could not find any data on this that i could understand. Which unit is the best to spam in a all galactic conquest run?

I haven't complete made sense about how the auto-resolve algorithm works yet. All I know is that capital ships and heavy tanks appear to have the best value when it comes to auto-resolving. You probably have the best chance just spamming what the game considers to be the "best" units. No idea if the game values having a variety of units in the army or fleet.

Hero units are actually pretty overpowered when it comes to auto-resolving. In galactic conquests where the goal is to kill the Emperor, I've never once been able to kill him by auto-resolving. The Zann Consortium heroes are especially broken as I was once able to capture like 10 planets with just all of them in a single fleet.

Ight. I will keep this in mind as i try to rout this tomorow. Oh lord give me strenght