Few The Lord of the Rings debates are as heated as who is more powerful when it comes to Morgoth vs. Sauron, but there would be a clear victor if Middle-earth's two greatest villains ever battled.

Eventually, Númenor’s king comes under the insidious influence of Sauron, who had once been Morgoth’s second in command. At Sauron’s encouragement, the Númenóreans build a temple to ...