Also, the ring did not make Sauron any more powerful than he originally was. The purpose of the One Ring was to control the wearers of the other rings. Accordingly, Sauron had to pour the majority of his power into the One Ring. Therefore, when he lost it, he lost a lot of his power.
Morgoth Was Originally More Powerful Than Sauron
In the depths of time, Eru Ilúvatar created Arda and the Valar. He made the Valar to help create and order the world, but the most powerful Valar, Melkor, turned out to be nothing but problems.
Characters who can easily defeat Sauron are; his Creator Eru Ilúvatar, his old master Melkor, and the Valar. Others who could overcome him would be Ungoliant who physically dwarfed Morgoth, and some great Maiar of Valinor described as almost as great in power as the Valar themselves.
Hence, with the Power of the One Ring to strengthen him, Sauron would have been invincible. No one would have been able to raise an army to defy him. Even without the One Ring he was able to master or dominate the wills of many tens of thousands of Men and Orcs at the end of the Third Age.
Gandalf as Ring-Lord would have been far worse than Sauron. He would have remained 'righteous', but self-righteous. He would have continued to rule and order things for 'good', and the benefit of his subjects according to his wisdom (which was and would have remained great).
God is the most powerful entity in Tolkien's Lord of the Rings universe. The Elvish name for him is actually Eru Ilúvatar, meaning “the one, father of all.” So the question becomes: Who is the second-most powerful being? Originally, it was Melkor, “he who arises in might,” the most powerful of the Ainur (or angels).
Regardless, Glorfindel remains one of the strongest characters in The Lord of the Rings, with powers similar to that of the Maiar after being, essentially, brought back from the dead to aid in the Third Age and the War of the Rings.
As for Sam, his resistance likely has to do with his innate goodness and loyalty. His love for Frodo helped him to overcome the pull of the Ring and his inner pureness was never fully pierced by the Ring.
Creating the Ring simultaneously strengthened and weakened Sauron. With the Ring, he could control the power of all the other Rings, and thus he was significantly more powerful after its creation than before; but by binding his power within the Ring, Sauron became dependent on it.
While incredibly intelligent and powerful, Sauron's greatest weakness was his arrogance. He constantly underestimated the power of his enemies, which often led to his plans being thwarted and his armies defeated.
Sauron's deepest fear was that Aragorn would use the Ring against him. With its powers of domination, Aragorn could comfortably take over the entirety of Sauron's dark army. Though this would eventually corrupt Aragorn, it would allow him to destroy Sauron and take his place.
Different: Sauron Is Probably More Powerful Than Voldemort
While both wield enormous power, Sauron is probably a force beyond Voldemort's reckoning. Voldemort might have descended into the depths of darkness, but Sauron is an entity from another time, possibly with powers that even Voldemort cannot imagine.
Legolas was a nice little Elf princeling yet he was nothing next to the Elven king Gil-Galad. So no, Aragorn and Legolas could not defeat Sauron in hand-to-hand combat.
Originally Answered: How would Dumbledore fair in a 1 v 1 fight against Sauron from Lord of the Rings? He would get instantly vaporised. Sauron is among the most powerful of the Maia (demigods). So he is in a whole other level of power.
It begins after Sauron's master, the evil lord Morgoth, is defeated. Sauron may have gone into hiding, but he's still alive: the series will eventually show Sauron's creation of the titular rings of power—including the one ring to rule them all.
As it turns out, even after forging the One Ring, Sauron was still capable of feeling fear and regret. Actually, even during the War of the Ring and at the height of his power.
The first is that Bilbo is a hobbit, and as such, is particularly difficult to manipulate or corrupt. Hobbits have a natural resistance to the influence of the ring, because they are fully content in their simple lives and have no desires for power or war.
In the spiritual world, beings are invisible to those in the physical world. This is why Isildur, Bilbo, and Frodo become invisible when they wear the Ring—because they are no longer in the physical world. As Olsen said, Sauron does not have a real body, so he is not affected in the same way.
Though someone could start out with good intentions, the Ring would eventually corrupt them. And that is why Gandalf can't touch it. He is afraid that if he did, it would corrupt him and make him just as bad as Sauron since Sauron put so much of himself and his evil into the One Ring.
It's a constant reminder to Aragorn of his family history; his hesitation to take the ring from Frodo Baggins (Elijah Wood) is a direct result of Isildur's corruption. Although Boromir ultimately falls victim to the seductive nature of the ring, Aragorn is able to defy his family history and resist his urges.
Because of their intense love of the earth, the Ring does not sense hobbits as a threat, which is why they were able to be overlooked and complete the quest.
In wisdom and skill certainly. Having been raised by elves he was very knowledgeable about the Elder and Middle-earth in general, also being able to speak elvish without problems, something rare in the Third Age. He was the Men par excellence in all of Tolkien literature (even more than Beren, Tuor, and Húrin).
In The Lord of the Rings, it is said that had Galadriel chosen to use her powers for evil instead of good, she would have been even more destructive and terrifying than Sauron himself. Galadriel was the greatest and most powerful of all Elves in Middle Earth in the Third Age.
Sauron. The Dark Lord Sauron is the most powerful villain in Middle-earth. He is a Maia, one of the divine spirits who entered the world to aid the Valar in their work. Sauron is responsible for creating the One Ring, which grants him immense power and the ability to control others.