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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Master chief would kick the star wars universe's ass singlehandedly. Not to mention the covenant and the flood. Star wars doesnt stand a chance. Halo could even use the Halos against them.