What size do I carry most? Geez, that's a toss-up. My duty pistol is an M&P45 and I carry it in a duty rig, over 40 hours a week. Right now, I've got a J-frame in my pocket. If it's blue jeans, it's the j-frame, if it's slacks, it's the LCP. If I'm in the woods, there's a Super Blackhawk hanging from my belt, but often times I'll forget that the j-frame is in my pocket, so it goes along for the ride.
I'm limited to one woman, I'll tolerate no such foolishness from my handguns.