P32 is my personal preference. I find the .32acp to be better suited to these "mouse guns."
The Seecamp LWS32 is the nicest. But, the P32 is cheaper, lighter, holds more ammo and has less recoil. Plus I think the P32 is at least one thing KelTec got right.
That said, the stainless version of the LCP is probably a better all around choice.
Now IF Ruger offered the new stainless LCP in .22lr...awesome! I don't really care for pocket carry and rarely ever do. I hate stocking a niche caliber.