I have a couple of Galco Stow and Go Holsters, a Galco Summer Comfort, a Blackhawk Serpa, 2 Miltech OWB/IWB and 2 Shielded IWB Holsters.
My 1911s actually fit in the Summer Comfort for my Glock 23/17. It also fits the Galco StowNGo for the 23. It's one less holster to buy. ;)