One steel, one alloy, and one piece of combat tupperware.
I bought the Ruger P345 due to how it felt in my hand, how it pointed (natural for me, better than my P85 Mk.2), .45ACP, and price. It came down to the XD45, HK USP45, and the P345 and it "clicked" for me.
Personal preference is personal preference, no need to justify it.