For me it's the Glock 48 for one simple reason: It fits my hand while no other Glock does. I carried a Glock 22/23 as a issued duty weapon for my career and always struggled with the grip size. I would prefer it to be .40 S&W but that will probably never happen. For those whose hands accommodate them another Glock with higher capacity will probably be a better choice but I really like my Glock 48.