I don't have too much experience with any of the options you listed, being a stubborn 1911 and revolver guy, so what follows is purely my opinion.
The Sig pistols I've fired have had a weird resonance with every shot, as though the frame was a a tuning fork. Not many people can feel this even with the exact same guns that did it for me, and it seems to have no negative effects on reliability, so if you have no idea what I'm talking about, then don't worry about it.
Both the Sig and the HK have a double/single decocker style trigger. Again, this is opinion, but I hate these things with a passion. I feel the trigger pull should be the same every time- consistency is the heart of accuracy, both in the mechanics of the weapon and in the technique of the operator. It is certainly possible to fire accurate shots with either double or single action, but the transition serves no purpose in my mind. If you don't mind this, then both are very well made and would be good choices for someone not so stubborn as me.
Personally, I would go for the CZ out of those three. It has a consistent trigger, steel construction (some things just feel better in steel), and it's not very common while still being reliable enough where not having a box of spare parts at every gun store doesn't matter. Steel frame and slide feels like it has better balance to me, where polymer guns seem to be top heavy.
You can get 9mm 1911s, though they may have to be special order. Best trigger in the business if made by a good company. Most options for customizing by far, and unless you have big hands, you may find the grip more comfortable.