Argento tastes as you get 'older' are interesting.
I remember distinctly when I was in my early 20s not understanding why my older collector connections all hated Argento.
As you dig into the Giallo genre, etc. you definitely begin to dissect the films and see the patterns, etc. eventually, for me anyways, appreciating the most bare bones examples of the genre that acted out most of the genre's stereotypes. As I eventually watched the Argento films again, I began to understand my older collector peers - seeing the self-indulgent over-stylizations, the complete loss of being in touch using Goblin and Iron Maiden for the soundtracks, etc. Makes me think now... fuck it, my favourite Argento movie if I had to pick one is SLEEPLESS [2001] - like Argento realized it was time to strip all the bullshit away again, thus making something so straight forward and vicious. Makes me wonder if he watched FATAL FRAMES and thought he created a monster he had to kill.
I always say, if you want to show someone a GIALLO in every sense of the word - play them SO SWEET, SO DEAD [1972].