As has been said, reliability is first...even if that means a full metal jacket, in which case I'd prefer the 147 grain ammo followed by the 124 grain and preferably with a flat point = if it functions 100%, if not then the round nosed versions would be called for.
In hollowpoint ammo, I'd be inclined to check out the Winchester White box 147 JHP ammo, it has a good "tested" reputation and a good price compared to the "premium" lines of JHP ammo...other than that one, a 124 grain JHP of anyones making would be my next choice to test for reliablity and accuracy. Generally speaking, the more rounded the nose profile, the more feed friendly it is, but this is not always required.
Shot placement rules, but the bullet must be able to penetrate deep enough to hit something critical, which is why I prefer the heavier bullets. I have found that in general, the 124s shoot closet to point of aim at distances of about 15 yds and greater than the 147s which tend to hit a littler higher - it all depends on your pistol, sights, etc.
I carry Winchester Ranger 147s and keep Winchester White Box 147 FMJs in my back up mag for my Glock 26. I'd feel comfortable with 124s as well and some of my pistols are more accurate with a 124 grain bullet so that's what they get = hollowpoint and/or fmj.
Remember, it goes like this when choosing ammo for a defensive pistol; Reliablity first, Accuracy a close second, and Type (FMJ, JHP, etc.) and weight last...it has to be able to function the firearm and hit where you aim or the type of bullet will make no difference. A FMJ thru the heart, brain or major organ will very likely produce the same final results as a hollowpoint that took the same path...likewise, a marginal hit with either will get you marginal results.
Premium ammo, especially if it's designed for Law Enforcement, will likely have flash suppressed powder which is good for low light shooting and also nickeled cases which is a plus for feed reliability - is either one necessary, maybe not, but they sure don't hurt either...kind of like night sights.