Who wins?
By entire, I mean EVERYTHING. Halo, for example, would have all of the Precursors, Forerunners, Covenant, Flood, and Humans all teamed up against ALL the Star Wars universe
They all have their technology as well. Halo has their Halo Rings and such, Star Wars has all their Star Destroyers and Death Stars and all that
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Star Wars has Centerpoint, which can drag planets and stars remotely. It can also be weaponized and fire beams of energy anywhere in the galaxy through hyperspace. The one recorded beam (that I've read about) was 1000 km wide and obliterated everything in its path.