When I was a kid it was the Chucky doll from the ChilRABplay movies
But I agree, usually I just laugh at horror movies these days, which is why I chose Don from Sexy Beast (Ben Kingsley). Menacing characters like that, and Dennis Hopper in Blue Velvet as mentioned above, are much more frightening than most horror villains, maybe because they're more real-to-life.
Just what I was going to say but you got there first. I am watching this again soon on film 4 for about the 15th time. My favourite film starring Raymondo my favourite actor.