While all of those pistols are nice, the 9mm is the most popular pistol round because it is cheap (before the hysteria hit us) and bullet technology has greatly increased its lethal effects.
Not cheap anymore!
I saw a lady pay $55.00 for 50 rounds of 115 gr ball range ammo at the local gun store a couple of weeks ago.
And, they would only sell her 50 rounds with her new pistol!