I would rather carry the SP101 any day, over an LCP, but it does indeed take bigger pockets to contain an SP101. BIG pockets. I own such pants, and have pocketed SP101s. As for printing, I would use Kramer pocket holsters for either one, so all that would print would be a rectangular shape, not the shape of a weapon.
Why my preference for the SP101? I simply have no interest in the LCP. They are the same relative size as the Kel-tec, and I briefly owned one of those. I bought it impulsively when they were still quite scarce, and could tell by dry-firing that it was not for me. Too narrow for me to hold securely during the trigger stroke when firing one-handed. I had heard they were a bit wider than the P-32, but that bit was not nearly enough. (I had fired my wife's P-32 previously.) A friend offered to buy my Kel-tec .380 for what I paid, and it is his now.
I care about concealability, but care infinitely more about shootability. The SP101 behaves more like a service pistol than a pocket pistol, in my hands, limited by the sight radius. I have three SP101 snubbies, and a couple with longer barrels. Life is good.