I haven't shot the .45, but the .40 and 9mm are excellent.
Is the .45 frame larger than the .40/9mm frame? Because that frame actually feels a bit small in my hands, not large.
Beretta PX4 .40 - Colt 1968 Detective Special .38 Spc. - Ruger LCP .380 - Daniel Defense M4V1 Carbine 5.56 - Ruger 10/22 .22LR - Remington 870 Express Tactical 12GA