Love my PPK/S Walther, but it is heavy, especially for S. Florida climate attire....Shorts/T-Shirts. Many options, however, my P3AT in a Nemesis holster with Speer Gold Dot, or Cor Bon SD ammo fits like your wallet and has stood the test of time with reliability, and wear.
My Colt Mustang Pocketlite .380 does also, but if involved in a SD shooting, it may get confiscated and mysteriously "lost"....
The pocket 9's seem to be the new thing, and plenty of options available.
It comes down to your comfort level. Remember higher capacity means more weight. Warm climate/cooler climate, makes a difference. Kahr and Sig make great concealed carry pistols. So does Charter Arms with their micro .22 magnum. However, as has been posted, it's a persona; choice.
My M&P compact .40 in a Galco Summer Comfort rig works great with jeans, but not with shorts. My Taurus Ultra-Lite .38 snub works in shorts with Remington Golden Saber +P's also...
Celebrate diversity. As I've posted, sometimes the right "one" finds you...