As much as I love the 1911, I wouldnt carry it for work because of capacity. Here in Phoenix we have a problem with Coyotes (human smugglers) fighting each other. They have rolling shootouts and hit squads. Couple weeks ago 4 guys rolled up to a house...2 in front and 2 on the side, and dumped something like 100 rounds into the house using rifles. They were caught that night and openly admitted that the only reason they didnt shoot it out was because they used all their ammo at the house.
The closest Ive come to getting in a shooting on the job was when my partner and I ran into a guy who was in the middle of an armed robbery spree. When we rolled up on him he had a 12 gauge, that he just stole from someone down the block at gunpoint, and he pumped the action when he spotted us. He was behind an F150 and took a lot of explaining that dropping the gun was a good idea, though not in so nice of terms, before he gave up. When we examined the shotgun, he had loaded it but somehow jammed the thing when he was cycling the action.
Now In a situation like that, I was glad to be carrying my 16 round G22 with 2 spare mags. He had a firepower advantage and good cover.
Off duty Im just as likely to be carrying my Ruger SP101 as my Glock because Im not worried about those kind of situations.
BUT....that doesnt make the 1911 obsolete in any way. You just have to be aware of the lower round count. Plenty of LEOs use the Sig 220 and have no complaints.
P.S. the SF unit I worked with in 05 carried Beretta 92s. I asked them about it and they said the Berettas (not M9s) were accurate, reliable, held a lot of rounds, had good penetration, could get ammo at any FOB, and the 9mm worked fine if your hits were good. One guy did carry a custom Colt though.
__________________