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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If it's movies versus games only, Star Wars easily. A fight between books is a joke, considering Disney made the second worse entertainment decision by claiming EU is not canon. Halo wins that one, because Star Wars no longer has anything to fight with.