Oof, I like
They Live much more than either of you two but I wouldn't have considered it a horror movie in the slightest so I'm baffled that you settled on it when stuff like
The Fog and
Prince of Darkness exists (though I'd wager Zotis would still have turned his nose up at them anyway). Now that I think about it, I might watch
Body Bags since it's a Carpenter/Hooper anthology movie so it nails three categories in one.
As for me...
Day 1
Inferno (Dario Argento, 1980) -
A sequel to
Suspiria that repeats a lot of what made that film great (lurid visuals, cacophonous soundtrack, feverish displays of occultism) but falls prey to characteristically haphazard
giallo plotting that jumps from character to character without much care for anything beyond the immediacy of whatever's happening in one scene at a time (plus Mark isn't as good a protagonist as Suzy). I do like how it builds upon the world of
Suspiria and Argento is nothing if not a master aestheticist that makes this a great visual experience, but it rings a little hollow. Still, I can't say that I didn't enjoy it.
Opera (Dario Argento, 1987) -
More of the typical "murder mystery" kind of
giallo but with some extra-lavish production value thanks to the opera setting. It definitely has some discomforting approaches to violence and the hell that it puts its heroine through (if you have a thing about eye trauma then this probably isn't for you), but it's able to feature some solid set-pieces and images in the process.