I realy don't know how to define "Favorite."
I mean, I voted OTHER, in honor of my ongoing affection for the Colt Pocket Model of 1908 (sorry, Brian Williams - - The 1903 was the .32 ACP.) But I seldom carry my Colt, and frequently have my KT P3AT in my pocket.
I still have the Walther PPK .380 I bought new-in-the-box back in 1966. For several years it was my Always Gun, packed in a homemade ankle holster, but I phased it out during the late '70s, in favor of an Airweight Chief's Special. The old Colt still serves as my computer desk gun, but I almost never carry it on my person. Shame, too, because it is VERY accurate, but it is large and heavy for its power.
Best,
Johnny