I have some heavy hitters:
Sig X6 - 9mm
EAA Witness Elite Match (a pair of them in .40)
Springfield 1911 SC - .45
Springfield XDM 5.25 - 9mm (also an XD Tactical 9mm)
Browning HP's - .40
Browning HP Competition - 9mm
CZ 70b - 9mm
To be honest I rarely carry any of them. The most likely pistol I'll be wearing is a Walther PPS, a mini 9mm as it were. Second most common is a S&W Bodyguard .380. When going on a long road trip I will pack either the pair of Witness Elites or the Springfield 9 mm's. When I'm going to a fancy dress Barbeque it's the CZ75b, S&W 1911sc, or the Sig X6. When going to a formal dinner in tux I often pack my Beretta 21 or Baby Browning in .25 ACP because they fit comfortably in the little holster pouch my wife sewed in the cummerbund.
I've probably been in as many gunfights as a civilian as the majority posting here. None. I've been on this planet for 62 years, and lived in the 4th largest city in America for the last 21. I've traveled extensively through South Africa, Mozambique, most of Europe, Singapore, Hong Kong, Bataam Island, Korea, and never had to pull a gun out. So I don't feel under-gunned no matter what I am carrying, because many of the places I've worked don't allow you to carry anything at all.