Guardians would win. Here's why:
Goku would lose because he is not associated with light. Gorgons decide if he's real or not and he dies, (unless he's sneaky), he couldn't kill Atheon, Time's Conflux because he would be lost in time(unless that Green Dude it there).
Would he be able to kill Crota? If he's smart enough sure
Dismantle Mines, Yes? Nope he dies
Facing Oryx, in his own realm without light = death!
Oh wait, that just proves we're smarter.
Oh, here's why we would win.
[spoiler]Pre-Nerf Year 1 Gjallarhorn. The weapon God and Jesus spent 6 days making.[/spoiler]
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Dude there is no bullet/ rocket or anything that could even hit goku let alone kill him as for the Gorgons he can just instant transmission away from their gaze besides he would probably move too fast for them to spot him anyway.
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He wouldn't even have to dismantle the mines. He would tank them, easily. He's stopped countless planet destroying blasts, I'm sure he can stop a few fallen makeshift mines.
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Those mines kill anything
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Even gods?
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