GP 100
I've been following the replies. The question has become, in essence, why buy a .357 and shoot 38s?
I have had advancing arthritis in my hands for years. My very first handgun was a Ruger GP 100 that I bought in 1987 because I thought the "bigger the bark, the larger the bite." I have since gone...and abandoned...the.380 route...including owning both the PPK and (still) the Sig 232.
I shoot 38's in the Ruger .357 for several valid reasons: less felt recoil, very accurate handgun and less expensive to shoot. True, GP100 is a heavier handgun than many, but it surpasses all my other .38/.357 options because of the lessened recoil. Moreover, I am not at all worried about any diminished impact of the .38. Law enforcement used that caliber for decades. Yes, there may be perceived "better" loads out there, but I sure would not want to be on the receiving end of a .38, whether fired out of a .38 or a .357!!!
Check 'em all out...you'll find your own best option.