But, remember--Sauron's strength was diminished by the lack of the Ring. If Aragorn had come under the influence of the Ring, he could not have resisted its corrupting influence. Once the Ring had him in its power, would it have been satisfied with a mere man, or would it have bent its will to be reunited with its true master?
Sauron bested the Numenoreans at the hight of their glory (prior to the destruction of his attractive form, and before the creation of the One Ring, I believe.)Much of his power was then placed in the Ring. Once Aragorn fell under it's spell, would he have fared any better than his ancestors in resisting the seduction of Sauron?
I'm not sure how much of the ring's will was the ring's and how much was Sauron's. If Aragorn had the ring, would the ring's will be that of Sauron, Aragorn, or would it just weaken and all "wills" are belong to the current master. As long as the ring existed, Sauron would be lurking around somewhere. About the only thing I'm sure of is that if Aragorn had the ring, he also had the strength to become The Dark Lord of Middle Earth.