I've shifted from the .45 to 9mm, I love my 1911s, but the cost of ammo was killing me, I went from 1911s to a FN HI Power and a HK P7, I don't feel one bit worried about my choices, I've got the HP loaded up with Fed 124gr HST +Ps, and the P7 loaded up with Winchester 147gr SXTs.
XD-9 or my m&p 9-compact both great and reliable. I used to carry a 40S&W sigma for last 5yrs, now its my home defense pistol. Wife carries a Bersa 380 until she finds a good 9 she likes. Are the PF9's? any good?
As of now I'm carrying the 45 about 90% of the time. I used to carry my Charter Arms undercover in 38 special most of the time, but I really like the Taurus Mil Pro now.