Gonna put my vote in for the Shrike from Hyperion Cantos.
The Shrike is a fiercesome creature, a tree of thorns, steel spikes that deliver endless pain or quick death. His eyes glow fiery red.
I feel like my mind has been picked, since I was just thinking of making a similar thread at work. xD
Not exactly a MONSTER, per say, but Noboru Wataya of The Wind Up Bird Chronicle by Haruki Murakami. is a really eerie creepy villain, and is more of an idea than a person, but evil all the same. He's a thorough monster in that sense.
Not really a monster, it was more of a representation of the monsters within the characters, but the Lord of the Flies from... Lord of the Flies. I already hate pigs enough, but a talking dead pig's head on a stick? Ugh.
Rye made this!
Maybe Gendall From Beowulf (the real one not that movie)
so the only thing that can defeat him is a torch or welder
And if you somehow manage to find a weakness, it could just go back in time and warn itself. Or gather an army of Shrikes to kill you.
To contribute, I would have to say Dracula. A lot of people I've talked to don't seem to like this book and I can't see why. The way he isn't an overt monster, like the movies portray him to be, gives him a more chilling personality. On top of that, he's highly intelligent and cunning.
:monster2: One, AH! AH! Two, AH AH! Three, AH AH!
creepiest monster ever was the cymbol monkey in one of stephen kings short stories