I would actually choose two half decades: 1975-1985. That period saw a lot of my favorites, particularly the blood-and-guts zombie films I love so much, along with the best work of great horror directors like John Carpenter, Dario Argento, George Romero and others. And the best slashers and cheesy horror films of the 80s mostly came out during the early 1980s, so you get the finest of that decade.

I'll give slight credit to the 00s for the revival of the zombie film and the emergence of Neil Marshall (Dog Soldiers, The Descent), but that's all.

as another poster mentioned,

70s for the spooks, 80s for the gore.

Late 70's to early 80's... blood, gore and tits..

The seventies, without any question. The times were adventurous and tumultuous. The '60s and earlier proffered, largely, campy Hammer-esque Gothic stuff (with a few exceptions), and the '80s and beyond consisted of too much unimaginative slashing and gore.

You read my mind. That's exactly what I was coming here to post.

That's 11 years, 80-84 is 5 years so it's 75-84.

Agree's
Savine, master of gore!

80's. But I also count late 70's in that grouping.

True true, because Dawn of the Dead 1978 was also one of my favorite zombie movie!

I would go with the 70s. Home of Halloween, The Exorcist, Dawn of the Dead, Texas Chainsaw Massacre, and Alien.

80s would be my second choice.

80's

Duh? The '70s, hands down. But I also really like the 1930s, followed by the 1980s.

70s, followed by 80s. I haven't seen much of the 50s/60s stuff. 90s was pretty lame, and the 00's has had some good ones but overall...meh.

30s I enjoy the Dracula/Frankenstein type stuff but I can't watch them as often as Halloween, Chainsaw, Exorcist, Last House etc.