At last count I have 18 of the 1911-type pistols in my little collection, starting with a civilian-model Colt 1911 (1914 production), Colt 1911 U.S. Army (1918), Colt 1911 U.S. Navy, Springfield Armory 1911 (1918), military 1911A1's from 1936 to 1945 by Colt, Remington Rand, Ithaca, and Union Switch & Signal, a 1938 production .38 Super, 1968 Government Model, Series 70 Government Model and Combat Commander, and a Colt Service Model Ace .22 LR.
I would not feel unarmed with any of those old timers. My prefered carry guns in recent years have been from Kimber (TLE, Pro Carry, and CDP models) when weather permits a cover garment.
None have rails, I have never seen any advantage to this feature for a concealed carry weapon (maybe for tactical applications, which I don't have to worry about anymore). The Kimbers all have night sights.
My usual carry rig is my Model 1-SL OWB holster on a 1.5" belt made of 10-oz. cowhide and a single mag pouch on the off-side.
My old S&W Model 37 Airweight will never be far from me, and I also like the Kahr P40 a lot. Both are very lightweight, just perfect for summertime when I don't want to wear a cover garment.
Tough to beat a good 1911 pistol, but there are certainly a number of fine alternatives.