1 Morgoth (Melkor)
Sauron at his peak of power, even with the One Ring, was not remotely close to Melkor in power. Not close at all.
Sauron over time became more powerful than Morgoth, his creation became his worst enemy.
He is the source of all evil and chaos in Middle Earth.
2 Sauron
Sauron is the title character and main antagonist of J. R. R. Tolkien's The Lord of the Rings. Originally a servant of the first Dark Lord, Morgoth. Morgoth was later defeated and Sauron fled. He later came back to Middle Earth and took over as the new Dark Lord by using a Ring of Power. He was later... read more I think Sauron was more ruthless and evil than Morgoth because he was gonna do anything to achieve his goal.
3 Gothmog (Lord of the Balrog)
4 Saruman (The White Wizard)
Saruman the White is a fictional character and a major antagonist in J. R. R. Tolkien's fantasy novel The Lord of the Rings. In the film adaptations of The Lord of the Rings trilogy, he was portrayed by Sir Christopher Lee.
5 Witch King of Angmar (Lord of the Nazgul)
He looks pretty terrifying and powerful. He even broke Gandalfs staff.by the way I have a question about how did Gandalf get his new staff when his staff was burned by Sauron in the hobbit?
He cannot die. Eowyn did not kill him, just temporarily ended him.
6 Durin's Bane (A Balrog)
Gandalf should have made some weird water spell on the balrog and if he did this he wouldn't have died.
7 Smaug (A Fire-Drake of Middle Earth)
Smaug is a fictional character and the primary antagonist in J. R. R. Tolkien's 1937 novel The Hobbit. In Peter Jackson's The Hobbit trilogy, he was portrayed via motion capture by Benedict Cumberbatch. He wiped out a dwarf army in 30 minutes.
8 Glaurung (Father of the Dragons)
9 The Nazgul (Ringwraith Servants of Sauron)
I want to see them unmasked once just once without their armor.
10 Azog (Orc-Chieftain from Moria)
Azog is a character in J. R. R. Tolkien's legendarium. He was a Orc chieftain who lived in Moria until his death in T.A. 2799. He is referred to in a single remark by Gandalf to Thorin Oakenshield in The Hobbit: "Your grandfather Thrór was killed, you remember, in the mines of Moria by Azog the Goblin."... read more I'm speechless. I'm surprised how Thorin even lasted a few minutes after killing him.
The Contenders
11 Ungoliant
I don't even want to talk about her.
12 Grima Wormtongue
13 Ancalagon
I don't get how Ancalagon isn't at least 4th.
14 Barrow Wight
15 Ar-Pharazôn
16 Shelob
Sam and Frodo should have brought insecticides.
Is Shelob like that spider monster?
17 Gollum
Gollum is a fictional character from J. R. R. Tolkien's legendarium. He was introduced in the 1937 children's fantasy novel The Hobbit, and became an important supporting character in its sequel, The Lord of the Rings. In Peter Jackson's Lord of the Rings and Hobbit trilogies, he is portrayed via motion... read more
18 Mouth of Sauron
19 Denethor II
20 Bolg
21 Bill Ferny
22 Ugluk
23 Grishnákh
24 Great Goblin
25 Lurtz