Just pick one and go with it...it's not like you're a specops guy. Any of the listed ammo will work for what the average civilian needs. Sometimes people get too far down in the weeds over this stuff.
I switched over to all 9mm last year. As much as I like to shoot, and want to shoot even more, 9mm is much more cost effective.Maybe just me(probably not) but I looked at cost per round initially. It's one of the reasons I went with and have been going with 9mm(not to mention enhanced ammo types being marketed), with accouple of 22's as well. I would love to have the funds to shoot the 40's and 45's but I can barely afford the 9's. And tho I have picked up some higher end sigs, ammo cost is still an important factor in my weekly expenditure's and enables me to practice practice practice. I may of missed the point of the Op but as I have picked up a box of 147 grain HTP Hornady rounds for home loads I am hoping that the Fiocchi 115 grain(1k rounds for 220 dollars with never a fail) will give me the practice needed to handle the higher grained home defense rounds? Apologize for the novel but any input into the differences between the higher end grain loads and + would be appreciated.