50s: Godzilla

60s: The Birds

70s: Alien

80s: The Thing

90s: Tremors

2000s: Saw

2010s: Cabin in the Woods. I liked this film when I first saw it and found it fun and creative. Over time, however, my impression of it has diminished. It's just Joss Whedon bitterly ranting about how it's all TOXIC CONSUMERS' FAULT that nothing original is ever made anymore! But we all know consumers never have a say in what gets produced or released, especially nowadays. Unfortunately, I can't think of any other decent horror films I've seen from this decade; just some miserable Saw sequels or something forgettable like The Crazies, so Cabin just sort of wins by default.

2020s: Final Destination: Bloodlines. It also wins by default of being the only horror film I've watched this decade (or even remember watching). I mean, I guess it's okay; didn't find anything obnoxious about it. But it's not something I'll ever consider a horror classic.

50s: Godzilla

60s: The Birds

70s: Alien

80s: The Thing

90s: Tremors

2000s: Saw

2010s: Cabin in the Woods. I liked this film when I first saw it and found it fun and creative. Over time, however, my impression of it has diminished. It's just Joss Whedon bitterly ranting about how it's all TOXIC CONSUMERS FAULT that nothing original is ever made anymore! But we all know consumers never have a say in what gets produced or released, especially nowadays. Unfortunately, I can't think of any other decent horror films I've seen from this decade; just some miserable Saw sequels or something forgettable like The Crazies, so Cabin just sort of wins by default.

2020s: Final Destination: Bloodlines. It also wins by default of being the only horror film I've watched this decade (or even remember watching). I mean, I guess it's okay; didn't find anything obnoxious about it. But it's not something I'll ever consider a horror classic.