if you plan on suppressor use at some point skip the px4 its rotating barrel lockup pretty much prevents it from happening
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent
Of the 3 you list I have the PX4 storm 9mm, inox. It's a shooter!
I get a lot of range time with it and I bought it as a backup to my 92fs. I shoot the 92fs just fine but my wife thinks it's to big. She really likes the PX4 and shoots it well. You can't go wrong with the gun. I have had zero problems with mine.
I own a .40 and several 9mm . have you ever shot a .40 ? Very snappy recoil and without a firm grip " limp wristing" it will stove pipe and jam up , non issues with the 9mm and ammo for the 9mm is alot cheaper especially if your buying bulk and shooting alot.
But I say pick that one that fits your hand best , thats the one you will shoot best and have more confidence in