I don't consider my J frame an "all-around" carry gun. I consider it an "all-the-time" carry gun. As such, it normally is carried in my pocket, in a belly band, or in a Smartcarry. I have a belt holster for it, just so I have the option, but it only rarely is carried that way.
All guns are compromises to one degree or another. Pocket guns make more compromises than most - size, power, capacity, shootability. I choose for my pocket gun a revolver. I am concerned about the reliability of pocket autos, even though the one I had was quite reliable, because of a myriad of reasons that don't need harping on at this point, but I choose to trust a revolver in this role.
As a pocket gun, my J frame is compromising shootability that comes from size and weight for carryability that comes from size and weight. The size and weight are also compromising capacity, and since I will never shoot a .357 through one of them, it is compromising power, but only a bit since I got a .38.
As it is mostly carried very close to the body and gets sweated on, it must have stainless construction or an impervious finish.
As it gets carried in a pocket very frequently, snagging a hammer on the draw when done quickly is very possible. Pocket lint etc getting in the hammer (or hammer channel, on a bodyguard style revolver) is also a concern.
Thus, I went for the smooth, sealed frame of the Centennial, in airweight to weigh down the pocket less (but still have enough weight to shoot it), and stainless for corrosion concerns.
642 is, for me, the definitive pocket revolver.
I read once that the definition of an optimist is the man who carries an Airweight snubbie and a speedloader.

Perhaps I should change my name to "The Eternal Optimist", as I carry a speedstrip or two, and keep a speedloader close at hand as well.
