The deal here is get what you can shoot. An HK, SIG, Beretta and Glock are straight out reliable guns. They way to mess up that is simple to much oil, aftermarket mags, bad ammo, the wrong parts well the list goes for while. A tight 1911 will work, mine was so tight I could hardly move the slide I finnished. I shoot 1911's, Glocks, and a CZ in IDPA and IPSC. I have used HK, Beretta and Sig but, that they were not quick enough and not suitable to me just not for me and not the other shooter. I have been beat by a Beretta and HK plenty and loose old 45's. Just shop around and see what fits.
Just my 2 cents