My favorites are Mask of the Red Death by Edgar Allan Poe and The Outsider by H.P. Lovecraft. To me they seem to be where virus movies (i.e. - Cabin Fever) and you-done-its (i.e. - Secret Window) come from.

My all-time favorite is The Tell-Tale Heart by Edgar Allen Poe

Rats by M.R. James, The Upper Berth by F. Marion Crawford, The Reaper's Image by King, and Unearthed by me (Chris Robertson).

The Cats Of Ulthar by H.P.Lovecraft.

Vintage

The Lottery - Shirley Jackson
The Tell-Tale Heart and The Cask Of Amontillado - Edgar Allan Poe

Modern

Stephen King:

Jerusalem's Lot (same town, different story)
Graveyard Shift
Children Of The Corn
One For The Road (Salem's Lot related)
The Raft
Gramma
The End Of The Whole Mess
The Night Flier
Rainy Season
Crouch End

Bentley Little

The Washingtonians
Paperwork
The Idol
Skin
Confessions Of A Corporate Man

Richard Matheson-Cant really pick a favorite. There are so many and almost all of em are good.

Duel, my favorite Richard Matheson short story:http://stlouisdumptrucks.com/Duel/si...11-683x510.png

Love Stephen King's shorts.

Favourites have to be; Jerusalem's Lot
The Breathing Method
The Langoliers-more Sci-Fi than horror I know, but this was kind of haunting

The novellas!! I forgot about those. The Mist is my absolute favorite.

Pickman's Model and Hands of Erich Zann by H.P Lovecraft
Metzengerstein by Edgar Allan Poe
The Professor's Teddy Bear by Theodore Sturgeon
The Boogeyman by Stephen King
The Deathbird by Harlan Ellison (I know it's more sci fi, but I still think it sort of qualifies)
The Yellow Sign by Robert W. Chambers
The Girl with the Hungry Eyes by Fritz Leiber