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 wins hands down, everyday, all the time. One reason, the force. A single force user is worth a thousand spartans. A Jedi can use the the force to make an army unbeatable(Kotor). Halo ring? Boom, death star vaporizes. Covenant flag ship? Boom, death star vaparizes, shields and all. Sure the flood might be a problem, oh wait, boom! Death star vaparizes. The galactic empire alone is enough to challenge Halo, add on the sith empire, the galactic republic, hell even the rebel alliance can put up a fight! Snow speeders vs. Scarab? Halo is out number, out gunned, and out matched in this throw down. They got nothing on star wars.