Thanks for the response.
Believe me, I have considered the G17 for quite some time. If I will go for a glock, might as well buy the original block, right? It was the first design and it works. No reason to doubt it.
I know ammos are now designed according to shooter requirements. Velocity, stopping power, metal piercing, etc. We have a vast option nowadays. The thing is, .45 is the widely available cartridge we have here. It is also the preferred caliber of the Filipinos. Of course we can also find 9 mm, .40 and others available here and there but not like the .45. It's just everywhere.
I guess a .45 rightly placed shot is more effective than the 9 mm double taps. IMO. The shooting skills I can learn on the range but you can't argue the stopping power of the .45. That's just how I see it. Correct me if I'm wrong.