Most Evil Final Boss

[Zelda Veteran]

A. It's about EVIL, not powerful. Besides, I bet that Majora's Mask could easily steal Ganondorf's body if he wanted to and squish the life out of it. (That, or go to zeldacomic.net to find the ultimate body Majora's Mask could posses. Even Ganondorf cannot win of him then. ^^)
B. I haven't seen Ganondorf kill anyone out of boredom ever and I doubt he would. He's not the stupid kind of dark lord that ignores his brain in favor of his evilness. Besides, so Ganondorf is more evil because he could kill people, and Majora's Mask isn't because he hasn't done so yet? That's not a fair way to judge. And just so you know, a whole world would have been destroyed if Link wouldn't have stopped MM, which he only could do on time thanks to the Ocarina. Didn't he do the same with Ganondorf in Hyrule (if you believe the split-timeline)? And yes, MM killed at least one person: the Deku-child.
C. Vaati is not Ganondorf's minion. And again, who cares. This is not about powerful but about evil. Ganondorf got years to get his position, MM only needed one day (yep, not three).

A. Ganondoef has something that Majora's mask doesent. The Triforce of Power. Granted so bvy the goddesses, I'm sure he would squash the mask, maybe even harness its power. The Title: King of Evil, isnt just for show.
B. Ganondorf has something else that the Mask doesent. A brain. He did kill people, in fact, he enslaved most of them. There are things worse than death, trust me. Besides, if he killed everything like the mask intended to, he wouldnt have anything to rule. He's be the last one left.
C. No, Vatti was after the light force, Ganondorf was after the Triforce. And The reason it only took the mask one day, is because it was created, not born. Ganondorf had to grow, in strength and power. I like Ganondorf better than any other villan out there, yes, he tops the villans in my favorite animes too.

[Hi no Seijin]

I have a problem with your second point, ZV.  It's true that Majora's Mask didn't have a brain, but it obviously didn't need one.  It came to life and took over Skull Kid's body.  Once he got rid of Skull Kid's body, he was able to function on his own.

[LadyNintendo]

A. Ganondoef has something that Majora's mask doesent. The Triforce of Power. Granted so bvy the goddesses, I'm sure he would squash the mask, maybe even harness its power. The Title: King of Evil, isnt just for show.
B. Ganondorf has something else that the Mask doesent. A brain. He did kill people, in fact, he enslaved most of them. There are things worse than death, trust me. Besides, if he killed everything like the mask intended to, he wouldnt have anything to rule. He's be the last one left.

A. So what? The one that carries the Triforce of Power can be defeated. And no, not necessarily by the ones holding the Triforce of Courage and the Triforce of Wisdom. Link did NOT have the Triforce of Courage when fighting Ganon in TLOZ, meaning the Triforce of Power can be beaten by any (true) hero. Nothing specific is needed. And remember the Lightforce? Whatever it is (nothing less than the Triforce), nothing specific is needed to defeat it. Maybe the full thing is omnipotent, but parts of it are not.
B. I, uuh, have not played TP yet, so I might be wrong, but I cannot remember any time Ganondorf enslaved people. And what does the rest of B has to do with who's more evil? What if Majora's Mask doesn't intend to rule anything but derives pleasure from harming others? One harms to get power, the other harms to harm. What's worse? And yes, there are worse things than death. Like being torn apart and have your body scattered all over the place. Or your children getting taken from you (eventually resulting in their father dying in an attempt to get them back). Or your son being murdered. Yep, worse things exist.

[Zelda Veteran]

The worst kind of pain is heart pain. Some people could testify to that. and I would say something that would make me the evil-est but im going to bite my tongue on this one. :P

[Pale Dim]

Jeeze, I didn't even think about this stuff! Who knew?

Also, there is a small matter of the way Ganondorf keeps coming back. Even if you kill him, his followers are going to do the best they can just to bring him back. Has that ever come with Majoras Mask? No. If you seal him away, he's either going to brake the seal, wait for it to weaken over time, or his followers are going to get him out. Remember, he is so Evil and powerful that most of his followers consider him a god. And, even if Majoras mask were to even try to control him, (remember, Ganondorf has no interest of masks) he would take one look at it, and, if he's in the right mood, leave it where he left it, or just crush it in the palm of his hand. And besides, the skull kid was only one life. We are talking about the whole world. You can destroy the Majoras mask, and I doubt it would return, but you kill or seal Ganondorf away, he will still come back even from death, because he isn't shattered all over the place.

[LadyNintendo]

No, Majora's Mask...erhm "followers" rejected him because they realized he/it was to dangerous, even for them. Since Ganondorf's followers aren't scared of him, who seems to be more evil?

[Pale Dim]

Because two of his followers are his own mothers, Twinrova. They are usually there to keep Ganondorf from getting too angry.

[Vaati]

As much as I think Vaati totally rocks, I think Ganon is more evil. Don't ask me why, I don't even know, he just does.

[bgrugby]

I have to go with Link's Shadow from AoL cause I will never forget when I got the game when it first came out and it took me forever to beat that SOB. So that is what makes him evil to me, now if the others would have killed some puppies then I would have to consider him but all these years later I still sweat when I face the original shadow.

[Vaati]

But it's like what Hi no Seijin said earlier, (I think it was him) it's not that you thought they were hard, it's just the fact that they're more evil.

[Takun]

What did those mask wearing kids say anyway? Oh and I vote Majora. HEY! I just thought of something! Who is Majora?! Because the mask couldn't be Majora because it's called Majoras Mask. Majora's as in possesive!

[Bboy94]

Majora is definetly the most evil. Majora's Mask tried to destroy the planet. Thats like if your shoe destroyed the planet. 8) Imagine the actual Majora. Plus since MM is just a mask, it has no compassion or worldly loves, unlike Ganon or Vaati, who were once people and have things like fear, MM is just PURE evil.

[Fairy penguin]

Was majora really evil? I mean, she (yes, i think it's a she, because when she sreams) was alone for at least 2000 years. Unable to die. Unable to move. unable to have conact with anything else. What would you do? What would you think? And I do think she had a concious. She wanted people to know what it was like to feel such sorrow. but maybe because of the way she was made. She harmed the people she did because of the Skull Kids emotions, at least partially. And I think she might have been trying to erase herself completely by destroying the world with the moon.

[Bboy94]

Majora is definatley evil, the mask, well you could argue either way.

[Fishalicious]

I think Majora's Mask is the most evil.

MM has no emotions. Vaati, Dark, and Ganon do. If you killed their most loved ones, then they would probably break down and cry. Majora's Mask had no one. Nothing.

Besides, Majora's Mask doesn't have to kill; It destroys people from the inside out. She disrupted the sea and almost wiped out the Zoras, she froze over the mountain village... MM messes with the environment as opposed to killing them. Would you prefer to die a quick death or slowly freeze to death on a usually warm mountain?

Also, look at what she did to the only guy in Ikana Canyon-- He turned him into a half-mummy, and all he could do was scream in agony. And Kafei and Anju? She destroyed their marriage by turning Kafei into a child, and then they wouldn't wed-- the one thing they were looking forward to.

And MM hurt her host, too; she sealed away Skull kid's memories and trapped his friends in these gargantuan monsters Skull kid would never even know how to kill.

Quite honestly, I think that's more even than say, turning people to stone, trying to kill people, or... just being the anti-thesis of the hero.