Also, a penetration test such as the guy conducted is pretty raw, and devoid of the variables that would be present in almost any gunfight with a human being. Are they wearing a leather jacket? Are they ducking behind furniture or other obstacles? Point being, ballistic gel gives a very basic base-line, and that's all, and real humans present many variables that would nearly always reduce the amount of penetration you get from a given round.
I kind of instinctively prefer JHP, but it's a ballistics-dependent equation. If the round I'm considering carrying doesn't have a good ballistics profile, and another round of the same caliber does, I'm going with the best profile I can buy rather than having to buy another caliber weapon in order to get the ballistics I am comfortable with. Which, when it gets right down to it, is why I don't carry a .380 to begin with. That's not a knock on anyone who does, just a statement of fact based on my own preferences and knowledge of ballistics.