Blue
Ravenous Bugblatter Beast of Traal
Man, we have different experiences. I loathed CoC 7e as a ruleset. Everything was around a horrible skill system, where similar skills were separated and there was zero synergy between things you think someone good at one would be good at others. I dumped a large number of my starting points into variations of a skill because I'd be good at all of them, and then many never came up in play. Advancement mechanics were very randomized, making some characters advance a lot faster than others based on pure luck, without enough rolls over the course of a campaign for averages to statistical assert themselves. In addition, since the system required a successful roll in play and a failing roll at advancement time, if you didn't start competent in a skill from character creation it's basically impossible to become so. You need to min/max to have a character where you aren't shooting yourself in the foot before play starts, and that's entirely from the ruleset.I have three "regular rulesets" that I cycle through: 5E, Savage Worlds, and Call of Cthulhu.
I'm Unsatisfied with 5E, Very Satisfied with Call of Cthulhu, and Satisfied with Savage Worlds.
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I think Chaosium is just continually knocking it out of the park with the CoC line. 7E is great (it has some rough spots - the Automatic Fire rules are pretty atrocious) but the mechanics, adventures, and supplements are all A Tier.
The poll asked about rulesets, so adventures and the like that you mentioned are out of scope. But the player-facing rules of CoC 7E were literally the worst modern set of mechanics I have played with.