Of the pistols mentioned above that I am familar with, I'd be happy with any of them. While I too prefer the .45, I'm fine with a 9mm. My favorite is the P7M8.
It feels like it was made for my hand.
I really like the paddle style magazine release.
I love the way it points and the low bore axis is phenominal. Both of these factors lead to fast, accurate shooting.
The squeeze cocking mechanism allows the firearm to be 'safed' when desired but when needed it acts similar to placing a DA pistol instantly in single action, giving a great, consistant trigger pull from shot to shot. Although some would rightly argue a manual safety lever is not necessary -and I would agree for the most part- there are some times when I am wearing sweats or otherwise don't want to snap on a holster and IMO the P7 is one of the best for mexican style carry if you really have to...
It's every bit as reliable as a pistol can be, the same I feel with all the aforementioned platforms.
I do not see this pistol as an ultimate fight stopper or a peerless combat weapon. I see it as a parachute... if worse comes to worse and I don't have my reload, it's 5 shots for the main chute and 4 shots for the reserve.
Finally, some say that the 1911 creates a mind/body relationship with the shooter like no other pistol. I would argue that the P7M8 comes very close, if not equal to it once you tune in to the manual of arms.
Again, I feel that there are so many great pistols out there that it's really a close call... I could easily go with a G19, P228, P2000, P99, ETC. and be very happy and secure... but the P7M8 does this AND satisfies my itch for a 9mm.
just IMO...
cheers