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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the only reason why I would say the halo universe would win is because of how devastating the halo rings are. how devastating the flood is. without those 2 aspects the star wars universe would dominate, sure the humans devastating mac guns penetrate star ships like its nothing... BUT the shear amount of how many races, how many armies, how many starships that are created and destroyed in the starwars universe is amazing. plus the jedi? I mean come on! the only thing scarier than a sith lord or a jedi as an enemy is a flood infected jedi.