I say 'Armorless' becase, honestly, Samus' armor is waaay more advanced and powerful than John's. But, without it, she might as well be a near-Spartan.
So who wins in hand--hand combat, no rules, no armor?
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Chief accidentally killed 3 ODST's without his armor once, after they tried to pick a fight with him. I'd say he'd win, no contest.