I used .357 Magnum “In The Gravest Extreme,” in a contest in which there was “No Second Place Winner.” So, I reckon nothing else comes close, as being THE favorite. I also really like .45 Colt, .41 Magnum, .38 Special, .32 H&R, .32 S&W Long, and .22 LR.
“_In The Gravest Extreme_” is the title of a book written by Mas Ayoob.
“_No Second Place Winner_” is the title of a book written by the late, great Bill Jordan.
I retired my S&W Model 58, about 1990, as its parts were getting a bit loose, and I finally admitted to myself that I have K/L/GP100-length fingers, if shooting DA. I have had the itch to get a single-action sixgun, to continue shooting .41 Magnum.