Deathclaw based on speed. But if the Giant connects I think the Deathclaw has no chance. plus you would have to factor In Giants are passive where as Deathclaws are a hostile creature that attack on sight so with that being said the Deathclaw would get at least 1 - 2 hits in before the giant even marked it as a threat. So if the Deathclaw made them count I think the Giant would be on it's knees picking up it's intestines. So I am going to say Deathclaw would completely win so long as it avoided the Giants club.