I am looking to add to my small collection of pistol by getting a .45 auto. I already have two Sigs a P229 .357 and a P226 9mm. I first thought of buying a Sig P220 but then I thought maybe something different like a H&K USP or a Glock. I am looking for opinions on these three pistols. I will not be carrying it so size is not too important. I want to use it at the range and for home defense.