Quality is an element that you can't recognize until you experience it for yourself.
Back in the day, some of the S&W revolvers were big-factory-supported custom tuned handguns, made by expert pistolmsniths. Those days are gone.
I believe it's not how many you own, but how many you love. So here is my list:
0. If you don't have T/C Contender on your list, it is wrong. EA Brown sells SSK-50 frames. Compatible with T/C G1 internal parts and all G1 and G2 barrels, this is your .22, .357, .44, .45... whatever caliber pistol you want, and your carbine too. Some say this is cheating, and some say aiming and hitting what you aim at in one shot has gone out of style. Swapping barrels... awesome.
1. "Every man should own a .22 pistol" Category: I have a Walther TT Olympia clone (parts are identical to Hammerli), hand tuned by pistolsmith Larry Leutenegger. One can't get that anymore, so... while there is nothing wrong with a Ruger, next to a Volquartsen you'll understand why the semi-custom costs twice as much. But I would probably pick the Walther GDP Expert at about $2,000 over the S&W Model 41 because... remember... you only get ONE, so don't be a cheapscate.
2. "Let's go hunting Big Bore". I sold my .454 Casull Freedom Arms Model 83in favor of a Hamilton Bowen tuned Ruger Bisley Blackhawk. If you can't wait the few years for Mr. Bowen's schedule for the very best single action revolver bar none, the Freedom Arms is a stunning choice. .500, .475, .454, .44... these are all the calibers you might pick. The thing is build like a swiss watch. $3,500. Remember, you only get one.
3. "Center-Fire Semi-Auto": Nighthawk Predator $4,500 (.45 acp but 9mm cuz it's your money) but I would pick Rock River Arms, because they are closer to my house and I like their stuff. As I slim down the gun cabinet, the center-fire semi-auto I have kept is surprising... Bersa Thunder 380. It's such a nice pistol for so little money, it's not worth selling.
Don't be such cheapscates. If you ONLY get three, make sure they are the best!
(I protect my home with a Labrador. Big woofs and bird dog. He works 24x7 and even when I am not there.)