SIG 232 for me
My favorite pocket pistol to shoot is the blue, alloy frame version of the SIG 232 in .380ACP. It is accurate, has great sights (mine include tritium night sights), a smooth trigger action like most SIG'S and a grip that fits my hand like a glove and minimizes recoil.
It is one of the pistols that I carry in a pocket on a regular basis.
For the number two position, I would nominate my pre-war WALTHER PPK in 32ACP. It is heavy enough to offset the recoil of the .32ACP which is nothing in a gun the size of a BERETTA model 82, but more noticeable in a compact like this.
The sights are adequate, but nowhere close to the fine ones on the SIG 232 and the trigger is heavier as well. Since I have average size hands, the gun has never bit me and I carry it as an alterative to the SIG when the clothes I wear are a little tighter and more likely to show the SIG.
A third one, that barely qualifies as a pocket gun, is the COLT 1903. This gun has the same, small pre war style sights as the WALTHER and lacks a double action trigger. It is very slim however and a great shooter, that is more accurate than I would have expected. I like to shoot it, even though it is too heavy to carry, so I mention it.
Jim