Speaking with experience, a non+P 124 grain 9mm Federal HST has no problem at stopping an attacker at 12 feet.
Sometimes I think to much is put on gel tests. Yep, they show you some cool images, and help designers with different profiles during development, but in real life from my experiences of hunting and other shooting, a bullet has several unpredictable factors when it hits living targets.
And in my opinion, and it isn't a popular one, the .40 caliber is just to high of a pressured round for what it is. The 9mm and .45 ACP have been doing a fine job for many, many years.
The only reason we have a 9mm is because the wife shot it better than the .45, and that is what she wanted around the house. I had my reserves about it, but it proved itself a good choice on a rainy day that I had left the wife and daughter at home alone when someone tried to enter the house. Good thing I let the wife choose the house pistol as she was the one put in the most dreaded day we all hope never happens.
Also, my gun will shoot the 147 grain more accurately, and the recoil is much less snappy than the 124 grain or 115 grain. If I had the ability to get the 115 grain +P+ Federal 9BPLE but has a ton more whollop. The 115 grain +P+ Federal 9BPLE round looks about like the .357 Sig if not better in Gel pics I have seen. It is fast out of a 9mm pushing 1400+ fps, and is on point with a 125 grain .357 Magnum half-jacketed hollow point.
Someone mentioned the Gold Dot, Win. Ranger T or HST, and I'd throw in the Federal line of Hydro-Shock (124 or 135 grain), BPLE (115 grain), BPLE +P, BPLE +P+, Remington Golden Sabers in 124 or 147 grain (Bonded, Standard or +P), and Hornady's XTP HP bullets. Any of the OTC hollow points today are proven technology for the 9mm bullet. I have a few police officer friends, and they have seen the old Remington and Winchester Hollow Points do massive damage on shootings they have been called out on. I am not talking about the Golden Saber or Ranger T. Just the basic White or Green/Yellow box of HP factory ammunition.
So which ever your gun shoots, and which ever you are comfortable using should be a good choice for woods or personal defense. That is what they are advertised as. They are advertised as deep penetrating, expanding projectiles. Which is all anyone could ask for out of a 9mm Parabellum.