one must wonder how you came down to these three as they all have virtually nothing in common.
if I'm not mistaken the CZ75B is a steel framed 9mm DA/SA design.
the FNX is a polymermer framed 45ACP DA/SA design and
the M&P is a polymer framed 40 cal stiker fired design. none of these weapons are very closely matched to begin with and then all separate are given the murky the water a little.
I would take the FNX over the others but that's almost solely personal preference. no matter the choice you will have a fine duty piece.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
I never said half the stuff people said I did-Albert Einstein
You can't believe everything you read on the internet-Benjamin Franklin