Nobody is preventing our military from using JHP. They voluntarily choose to use FMJ.
Last time I checked NATO says JHP's of any sort violates the rules of war.
The philosophical objective is not to kill the opposing soldier, its to wound and take that individual out of the fight.
Hollow points do lots of surrounding tissue damage and can be very difficult for field surgeons to remove, particularly if they come apart and spread all over.
A NATO round is supposed to hold together and retain most all of its mass for easy removal.
JHP's also don’t always get through field packs or other items a soldier may have attached.
As for the OP's question...
I'd opt for the lighter +p for cc use, rumor has it that faster lighter bullets expand more rapidly.