Well, a P220, even the smallest one, is pretty darn big. Much bigger than the small 1911s. And, it doesn't have a manual safety.
Because of the thinness of the frame and slide, I guess I'd recommend one of the short-frame, short-slide 1911s.
(Although, I should say that on the rare occasions I carry, it's a subcompact Glock in my jacket pocket, and it fits really nicely without being obvious.)