Keep this in mind...if we e ver had to to run to the hills to escape whatever catastrophe,either man or nature,and you could only could bring one handgun or didn't have time to grab your arsenal or anything that causes you to have one gun,what would you feel comfortable with? Assuming we're not all rich and have thousands of rounds of 500 magnum,and we had to resort to scavaging sporting good stores for ammo,which one would you have? Ok,I might be getting a little too way over board here,but it could happen. Might do this similar thread in rifles and shotguns as well.
Now I don't know if I'd grab the g19 or MKII. If it looks like INCH, then probably my MKII so I can kill small game with it. If it looks like I'm going to be gone a week or so, I'll grab my 19