Hi,
I read all that stuff . . . back "in the day." It made good reading and many, many posts on various forums that had all sorts of folks arguing over which is best.
Today? . . . well . . . I LIKE 'EM ALL . . . and for various reasons!
The lowly .22 will get the job done, and is fun and cheap to shoot.
The .357 is an awesome round, the .40 Short & Wimpy is great for an all around cop round in a bottom feeder.
The 9mm and .38 Spl. are soft shooting but usually effective rounds.
I love the .45 for the most fun to shoot, serious "fighting" handgun round.
I've taken lots of deer with my S&W .44 Magnum . . . though I killed a buck a week ago with a broadside, through-the-heart shot from a 300 grain heavy bullet . . . and the "dead" deer ran 180 yards without pumping any blood at all. Go figure!
The .44 Spl. is as fun to shoot as the .45ACP and the .45 Long Colt is a great caliber too.
Heck, even the lowly .32 S&W Long has to rank in there also as a super accurate round that's a pure joy to shoot.
MY RESEARCH HAS PROVEN . . . (at least for me) THAT THE BEST HANDGUN ROUND . . . is the one that is currently on your PERSON when trouble comes!
In this case, it as a .38 Spl., 5-shot S&W Model 37 Airweight snubbie riding in my pocket holster!!! It is a heck of a lot more effective on a sudden threat than all the bigger hitting guns that are locked "safely" in the safe!
At this point in life, I really don't care which caliber I'm carrying on an everyday basis. I'm very comfortable and confident shooting them all . . . and like my odds of success should I ever be forced to use them.
IMHO, experience + tens of thousands of rounds of serious practice + skill +
shot placement is more important than caliber size. Heck, this combination is generally only beaten by random cases of good ol' dumb luck!
T.