What kind of factors?
Shootability. Basically good grip, good trigger, good sights.
What kind of factors?
I think you underestimate the ability of an experienced shooter with a "bit" of practice to shoot accurately well beyond "pepperspray-range" with an LCP. With the far superior 380 and quality ammo, I would take your bet.
The idea that someone will be deadly accurate with a .22, and ineffective with a subcompact 380 is only valid if there are physical limitations or unfamiliarity with the pistol in my experience. Using a .22 handgun for self-defense is with rare exception, a bad idea in my opinion.
The bottom line is that you still have to poke one or more holes in something the other guy needs, for a reliable stop -- and for that task, a Buckmark is going to have serious advantages over a pocket pistol.
a Buckmark is going to have serious advantages over a pocket pistol.
Perhaps I'm missing something, but I don't understanding why the comparison is being made between a Buckmark and a pocket pistol?