I recently switched from a G30SF to a Glock 19. I have found the 9mm round to be more than sufficient as a man stopper and ammo capacity is premium. I run an extra G17 mag with a +2 extender for 19 rds. 35 rounds of 9mm is a lot of ammo, plenty to fight with just in case.
If it's not a 1911 it's not good enough for me to carry it. A Sig. p238 in a ankle rig and a OWB Rock Island custom by Arnel from Phrump Az.in .45 officers model..
Everyday carry is Ruger LCP...I know it's wimpy, but it is very concealable and always there. If I'm going to a "rough" area, I'll add a XD9-SC, or Ruger P90.