I'm not a fan of DA, so that rules out the Sig although it is otherwise a fine gun.
I don't feel comfortable with the Glock. The .40 is the kaboom model and that darn thing just doesn't look well-made. In reality, this may mean nothing, but I wouldn't feel comfortable shooting one and that's not a good thing for a gun.
The USP has no hi-capacity magazines (technically) and has a fairly long trigger reset, but these are minor complaints on an otherwise excellent gun.