Clarification: CZ is made in Czech Republic (formerly Czechoslovakia)
Which is best? Depends on your needs!
The CZ 75 and Glock 17 both have the same 9mm round and same magazine capacity. Steel frame vs polymer!
I’ve tried both and found them so different that it depends on what your trying to do. I can see why law-enforcement may prefer glock since its lighter and easier to carry.
…. At the same time the cz is much more luxurious to fire, the ergonomics are better and fit the hand more naturally… the trigger is far superior being both crisp and light and smooth and consistent!