And some Glockers wonder why I bring this point up! Ejection ports on Glock pistols are not relieved. It's probably the only combat pistol in the world that doesn't have a relieved ejection port. If the brass doesn't clear the lower window the case bounces up and gets hit by the forward vertical edge of the window which then sends the brass flying right back into your face. Shooters that drink the Glock kool-aide won't even accept that it's an issue. To me, the Glock is fine as a STARTER pistol, but when the shooter evolves, it's time to move on.
Consider some of the features of the XD/XDm and it becomes clear that they are superior in design. Grip angle is obvious. Then there's those tiny rails in the Glock. The forward rails of the XD design are far more substantial and are incorporated into the locking block which it and the lock-up system was copied from SIG/Sauer. And if you're gonna copy someone in the firearms industry, it's tough to improve on SIG. It's also replaceable. Relieved ejection port. Conventionally rifled barrels that shoot cast lead bullets with zero issues, Match Grade in the M. Grip safety to prevent "Glock Leg" and also to make sure your pistol doesn't go into an out of battery condition when you holster. To me the XD/XDm is clearly superior and considering it's price I thinks it's the best polymer framed pistol made. If you want to lay down a grand for an H&K 45, be my guest, but it really offers nothing more, and less capacity, cost around $400 more and comes with a DA trigger that can best be described as mediocre. I view my selection of the XDm as a wise choice.