When people have asked me which of these I recommend it’s usually the 9mm. Shooting the .45 smarts. It’s just going to, it’s a function of the very narrow grip and relatively stiff recoil.
But when people ask me which of these I prefer to shoot, it’s the .45 all the way.
I would like to see a .40 S&W XD(s) just to slake my curiosity, and I imagine Springfield is working on it, but I wouldn’t be surprised if the whole deal is currently being back-burnered to keep up with the demand on things they already offer.
Either way, they’re both some of the most controllable, concealable pistols in standard self-defense calibers. And they have great sights. And a good grip texture. And a strong aftermarket.
And for some reason, Glock isn’t having any of this…