Given my choice, however, I'd carry an M&P. They're an all around more comfortable firearm to shoot.
-J-
I own an M&P 9 FS. I like it, but it's my first gun and I have no basis for comparison. I'd not carry it though. Too big for my frame. I'd feel like a cartoon character with that thing strapped on. I've considered an M&P compact (or even a Shield) but since I've not yet owned anything but the M&P I'd like to own something else, for comparison.