Light, durable and with two extra mags on your belt you will not get killed for lack of shooting back its like 58 rounds ready to fly.
My greatest fear working the southwest border at night was being shot at from an unknown location. With the Glock and that many rounds available you could dump the first two mags in the general direction of threat reload and still have 19 rounds to spend if the idiot was still around.
All things being equal, the capacity and low profile put it over the top on a 1911 any day. If looks counted it would be sucking hind teat.