Four of your six guns are 1911s I think that should tell you something. I carry a kimber cdp pro 1911 45 acp with an aluminum frame and steel slide. It's light for a 1911 so it carries well. 1911s are single action triggers so they are easier to shoot accurately, the frame is thin so it's easier to conceal, they can be gotten in 45 acp or 9mm and ruger s&w colt kimber sig all make fine guns at reasonable prices. Go and shoot as many as you can before you buy. Good luck.