I have one of each in .45. The Kimber seems to run a bit smoother but for some reason I always grab the Springfield when we do our club shoots. You will be happy with either one I'm sure. Both are great firearms. Post pics when you make your choice.
I understand Kimbers are good guns, and lots of folks like them, but I also understand there are proprietary parts in there.
Couldn't tell you which ones.
If someone knows, I'd be interested.
I like to stay away from as many proprietary parts as possible, but you can't always do that.
When it comes to 1911s, more mil-spec is better.