My favorite writer is Christopher Fowler. He's almost always found uner the horror section. Maybe not out and out horror but very tense and scary. A lot of his stuff is set in London, a city he obviously loves, and is quite esoteric and brings incorporates a lot of interesting facts about the ciry you probably didn't know.
My all time favorite is 'Disturbia'. About a guy who inadvertently infiltrates a very old group of conservative and high ranking families who have had a major influence in the country for years. He is from the streets and they challenge him to make sense of their cryptic questions about London or die. A great read.
I stopped the bus for Sebastian Coe, He couldn't catch it for he was too slow.
Christopher Fowler's great - my favourite by him is Darkest Day, closely followed by Rune. I'm also a huge MR James fan, and I like Michael Slade (good for super-intense, factually dense psycho thrillers, often with the added bonus of sexual depravity. Way cool).
TED Klein's novellas (collected together as Dark Gods) are seriously good, and Ramsey Campbell has his moments.
Funny isn't it that most of the writers who we feel are worthy of note have been around since the 70's or 80's. Is that because the climate has changed and there is enough real horror in the world without the made up stuff? There used to be loads of horror compliations and books..now there hardly ever seems to be new stuff on the book shelves that grabs you
I enjoyed 'Fat white vampire blues' Andrew Fox....its kinda different...