JHP. I feel a JHP is much more likely to neutralize the threat quicker than FMJ. Also, I don't want to have to worry as much about over penetration that can happen with FMJ.
180 JHP is what I carry in mine in daily carry mode but, at the range most FMJ. Yet ether would work since a gun true pourpouse is to stop perm. or temp. so can get the heck out of dodge.
I like both rounds a lot and I feel 124 +P is just about perfect ballistically while still being EASY to shoot. 1200+ FPS in a fantastic performing modern hollow-point design.
And I ONLY buy in 50 round "LEO" boxes (available at dozens of online stores). No way I'm buying rip-off 25 round "consumer retail boxes".