Best 40 carry???
I'm not sure of which may be the best since I haven't tried them all. So all I can say is that if I'm feeling like I want a 45ACP the Glock 30 with the "Clip Draw" spring steel in the waist band clip is excellent!
I do NOT feel that Glocks are the "2X4" or "THICK AS A BRICK" PISTOLS that some may express. In fact the Glock 30 with 10+1 rounds of 45ACP is an incredibly powerful, accurate out of the box, small easily concealable option.
If I'm thinking 9MM a Glock 19 is perfect for me that is.
Some say they're nothing but plastic junk. Well I'm not going to get into that argument. But I do not feel they are plastic, they're polymer, somewhat different than plastic pens or water bottles. And the two models I mentioned feel great in my hands.
BUT of course there are other just as good and probably better suited to your needs, pistols available. So making a choice can be difficult. But if you buy a quality firearm, practice with it regularly and know the gun chances are you will not be dissapointed. In fact you'll end up with numerous pistols if you're like most of us on THR.