Call of Cthulhu would probably be more frequently mentioned if Cthulhu were easier to spell.
I've only ever sat in on one CoC game, and that was a short convention game. I liked it, but it wasn't anything special to me. There are some interesting CoC games which have been recorded for the netcast
Yog Radio. I particularly liked the game session which was set in the Iraqi desert.
After reading several Lovecraft stories last year, I wrote my own adventure loosely based upon
The Colour Out of Space. Character creation for Madness of Cthulhu got a little more complex than I wanted, but I was pleased with the adventure. I titled it, Hainted Holler. I was experimenting with the second addition C.O.R.E. rules at the time, and I was pleased with the result -- even if no one ever read it. It's over
yonder. C.O.R.E. and derived materials are all Open Source (under a Creative Commons Attribution 3.0 United States license), so use it as you like.
Currently recruiting for Beyond the Supernatural games in 2019 which I am running on Discord: voice, text, and play-by-post. Here is the non-expiring server invite link: 418BQSLG
“All would be well. All would be heavenly— If the damned would only stay damned.”
-- Charles Fort, The Book of the Damned, 1913