Okay I have two..three for this.
Because even though they are the villains that freak me out the most..they are most definitely the best.
1.The Clockwork Men
Okay maybe I just have love for this episode, but really even the Doctor likes them.
And also, I was watching one of the DW Confidentals for Season 5 and Moffat was was talking about the monsters he's written about and such and got to the point of, these are really the first monsters in Doctor Who that have been the monster-under-the-bed.
and really. When You're a kid, thats what scares you the most
2. The Weeping Angels
"Don't blink. Don't even blink. Blink and you're dead. They are fast, faster than you could believe. Don't turn your back, don't look away, and *don't blink*! Good luck."
The scariest things ever.
The fact that you see statues everywhere in real life is what makes these even more bad-ass.
"Fascinating race, the Weeping Angels. The only psychopaths in the universe to kill you nicely. No mess, no fuss, they just zap you into the past and let you live to death. The rest of your life used up and blown away in the blink of an eye. You die in the past, and in the present they consume the energy of all the days you might have had, all your stolen moments. They're creatures of the abstract. They live off potential energy."
Doctor: [on the DVD] The Lonely Assassins, that's what they used to be called. No one quite knows where they came from, but they're as old as the Universe, or very nearly. And they have survived this long because they have the most perfect defence system ever evolved. They are Quantum Locked. They don't exist when they are being observed. The moment they are seen by any other living creature they freeze into rock. No choice, it's a fact of their biology. In the sight of any living thing, they literally turn into stone. And you can't kill a stone. Of course, a stone can't kill you either, but then you turn your head away. Then you blink. Then, oh yes, it can.
Sally Sparrow: [to Larry, about a nearby statue] Don't take your eyes off that.
Doctor: [on the DVD] That's why they cover their eyes. They're not weeping, they can't risk looking at each other. Their greatest asset is their greatest curse. They can never be seen. Loneliest creatures in the Universe. And I'm sorry. I am very, very sorry. It's up to you now.
*note* The two parter in Series 5 with them. SO FREAKED OUT.
3. The Master
Do I even need to say why?
(THE PRETTY)
*ahem*
Another Time Lord, a match for The Doctor.
I know he existed back from the Classic who days and I love how he fits into the storyline of New Who.
He's just..yea.