Another +1 for Federal HST 147gr or Federal 9BPLE. The former is my personal carry round, while the latter is in my duty weapon. Both excellent, accurate reliable rounds.
I agree that if you do your part, pretty much ANY modern defensive load in 9mm will do it's thing and drop someone like a sack of crap.
I would also like to extend a thumbs up to Buildwonder for the excellent post. Shot placement, shot placement, shot placement. Practice your ass off and stay proficient - shooting is a perishable skill.
We must carry arms because we value our lives and those of our loved ones, because we will not be dealt with by force or threat of force, and do not live at the pleasure and discretion of the lawless.
- Jeff Snyder