These are my very personal favorites, not a "best ever" list.

The Cabinet of Dr. Caligari (1920, Robert Wiene)
Nosferatu (1922, F.W. Murnau)
Frankenstein (1931, James Whale)
Freaks (1932, Todd Browning)
Bride of Frankenstein (1935, James Whale)
Les Diaboliques (1955, Henri-Georges Clouzot)
Eyes Without a Face (1960, Georges Franju)
Psycho (1960, Alfred Hitchcock)
Carnival of Souls (1962, Herk Harvey)
Hour of the Wolf (1968, Ingmar Bergman)
Night of the Living Dead (1968, George A. Romero)
Rosemary's Baby (1968, Roman Polanski)
Last House on the Left (1972, Wes Craven)
The Exorcist (1973, William Friedkin)
The Texas Chainsaw Massacre (1973, Tobe Hooper)
Suspiria (1977, Dario Argento)
Dawn of the Dead (1978, George A. Romero)
Halloween (1978, John Carpenter)
The Amityville Horror (1979, Stuart Rosenberg)
The Shining (1980, Stanley Kubrick)
Sleepaway Camp (1983, Robert Hiltzik)
The Return of the Living Dead (1985, Dan O'Bannon)
The Texas Chainsaw Massacre 2 (1986, Tobe Hooper)
Blair Witch 2: Book of Shadows (2000, Joe Berlinger)
The Others (2001, Alejandro Amenabar)
28 Days Later (2002, Danny Boyle)
Dead End (2003, Jean-Baptiste Andrea and Fabrice Canepa)
Dawn of the Dead (2004, Zack Snyder)
The Devil's Rejects (2005, Rob Zombie)
Sweeney Todd: The Demon Barber of Fleet Street (2007, Tim Burton... idk if this counts.)

Yeah.

Shout out to Tales from the Hood, High Tension, Hostel Part II, Silence of the Lambs, Evil Dead II, Day of the Dead, and others I can't remember at the moment.

Based on my list, what horror films would you recommend to me?

p.s I have yet to see John Carpenter's The Thing (which is still sitting on my desk :/). I have Videodrome on hold. Hellraiser and Re-Animator are my next rental choices.
p.s.s I'm a lost ex-myspacer, so excuse me if I treat this thing like a blog....no idea what I'm doing.