I've never owned a 1911 model 45. If I had, I might prefer it. Many people seem to. However, my 45 is a S&W Model 1917 (Brazilian Contract version)revolver. I really like it. For one thing, I generally prefer revolvers to autos. For another thing, I can use 45 Auto Rim ammunition in my 45 revolver. The ammo I choose to load for HD is factory Black Hills 45 Auto Rim with a 255 grain LSWC bullet that Black Hills says acheives 760fps, but who someone with a chronograph reported clocking at about 805 fps. I don't know if that 255 grain load is availiable or not in a factory load for 45 ACP. If it is, I haven't seen it. I've been looking for some 45 Auto Rim shotshells so I can carry my last chamber loaded with a shotshell and my first five 5 chambers loaded with 255 grain LSWC. For my purposes, that would make my 45 revolver just about the ideal handgun. (I know CCI makes 45 ACP shotshells, but I'd have to use them with 45 ACP ammo in a moon clip, and couldn't use my 255 grain LSWC's with them. Also CCI advises their 45ACP shotshells aren't meant for 45 revolvers. Don't know why.)