As everyone has said it comes down to weight vs. size. If you want a true pocket pistol that is lightweight you will pay in shootability. If you only need to be able to effectively shoot one magazine or less in a SD situation then, with practice, you should be able to manage any of the guns mentioned. As a true BUG you might be willing to accept some additional weight. If that is the case then the Sig P238 is a fine shooter. It is a bit heavier and it carries cocked and locked. Some people don't like that in something that may reside in a pocket. If you are willing to use an IWB or ankle carry instead of the pocket then a Bersa, CZ 82/83 or Walther would be the ticket. As for the snubbies, like the rest, weight equals shooting comfort. Shooting comfort also will contribute to accuracy. Every handgun is a compromise. What is most important to you?
My BUG is a Polish Army P64. No fun at the range but very accurate, dependable (at least mine is) and although heavier than most, very concealable. Plus the 9x18 Makarov round is a better performer than .380. YMMV.
My BUG is a Polish Army P64. No fun at the range but very accurate, dependable (at least mine is) and although heavier than most, very concealable. Plus the 9x18 Makarov round is a better performer than .380. YMMV.