I have a PPQ. I rarely carry it, because it is juuuuust a little too bulky for me to CC full time. When I do carry it, I feed it Speer Gold Dot 9mm 124gr (standard pressure) or 147gr.
My every day carry is a Ruger SR9c. I generally recommend carrying cut-down duty pistols, rather than subs that sacrifice duty capability for size. The SR9c, S&W M&P9c, SA XDm 3.8" 9mm compact, and Glock 26 are all great choices. They are based on guns designed to take care of business, and they shoot like full size pistols.
Currently Own: Beretta PX4 9mm, Glock 23 (Gen 4), Glock 19 (Gen 4) x2