Mission drives the gear… (PR-RIP)
Outside the house in my urban/suburban environment- Glock 19 or bigger. These days G17 w an RDS.
Inside my house-Mossberg 500 with FC 00 Buck (though at my longest shot range, inside an older (circa 1920s) home, any buck shot is staying on target/inside the house.
IMHO-with my Shotgun 0-15 yards, with FC 00 Buck, if I knew I was facing a deadly threat, I will take the SG for 500 Alex.