You realize this is a can of worms and there is no definitive answer?
I tend to go with as much penetration as I can get so the 147 grain would be my choice if I were choosing 9MM.
9 mm:
Barnes XPB 115 gr JHP (copper bullet)
Federal Tactical 124 gr JHP (LE9T1)
Federal HST 124 gr +P JHP (P9HST3)
Remington Golden Saber 124 gr +P JHP bonded (GSB9MMD)
Speer Gold Dot 124 gr +P JHP
Winchester Partition Gold 124 gr JHP (RA91P)
Winchester Ranger-T 124 gr +P JHP (RA9124TP)
Winchester Ranger-T 127 gr +P+ JHP (RA9TA)
Federal Tactical 135 gr +P JHP (LE9T5)
Federal HST 147 gr JHP (P9HST2)
Remington Golden Saber 147 gr JHP (GS9MMC)
Speer Gold Dot 147 gr JHP
Winchester Ranger-T 147 gr JHP (RA9T)
Winchester 147 gr bonded JHP (RA9B/Q4364)
why would 147grain have more penetration than the other 2?
force = mass x velocity
why would 147grain have more penetration than the other 2?
for Smith + Wesson M&P9c:
Federal 147grain JHP
or
Golden Saber 124grain +P BJHP (Bonded JHP)
or
Federal 115grain +P+ JHP
Which of the 3 is the better self defense ammo for concealed carry?
basically JHP vs +P vs +P+???
edit:
and whats the diff between jhp and bjhp?
Edit: I personally wouldn't use +P+ unless your weapon specifically says it's safe. My Ruger's manual says there is "no commercially available ammunition with a pressure rating that exceeds the P95's tolerance" or something similar, but I'm still wary of putting +P+ through it.
most think about this too much.
Unless you are Tony Montana, cost of rounds is not a major issue...read the reviews and buy the most BANG for your BUCK.