Here's my two cents worth:
I shoot all of the following pistols (in 9mm).
Glock 17 - Excellent reliability, poor ergonomics, good accuracy.
Light polymer frame transfers recoil to the hand which can be tiring after a lot of rounds.
Sits very low in the hand, so is very stable.
Angle of the grip does not lend itself to a comfortable grip position.
Mediocre trigger but no double-action trigger pulls to worry about.
SIG P226 - Excellent reliability, mediocre ergonomics, good accuracy.
Heavy steel frame absorbs recoil well.
Sits high in the hand, so a certain amount of muzzle flip due to high bore line.
Chunky grip can be a handful, but reasonably comfortable.
So-so trigger with a very heavy double-action trigger pull.
M&P Pro - Very good reliability, very good ergonomics, very good accuracy.
Good ergonomics makes up for light polymer frame.
Sits very low in the hand, so is very stable.
Reasonably comfortable grip position with swappable back straps for different hand sizes.
So-so trigger but no double-action trigger pulls to worry about.
CZ SP01 - Good reliability, excellent ergonomics, excellent accuracy.
Heavy steel frame absorbs recoil well.
Sits low in the hand, so is very stable.
Excellent ergonomics, this gun fits the hand really well.
Excellent trigger with a decent double-action trigger pull with lighter main spring.
If my life depended on a carry pistol, it'd be either the Glock or the SIG. For a competition gun, the CZ has the edge.