I would say the trigger pull on my Shield 9 is a bit heavy but not bad. But then it's the only subcompact I have. It is comparable to my other M&Ps (FS and Compact).

There's no comparison to my hammer fired handguns but those are different beasts (Some SAO some DA/SA).

My only other striker (non-M&P) is a PPQ. That's in different league altogether.