Most guns that don't suck are pretty good
It's great that there are so many good choices.
I will bore you by saying that I'd recommend you consider, handle and if possible borrow / rent a Cz-75 (plus as many others as you can find the time to try).
I am not a handgun expert by any means (check my posts for lots of constant-dummy questions), but have been shooting handguns -- intermittently -- for more than ten years and now own a small handful of them. Above advice is good re: pants -- every gun and every person for a different complex.
HOWEVER, the Cz mania on this board is not without foundation -- and neither is the Sig mania, the Glock mania, etc.
The thing about the Cz-75 compared to most other guns I've tried is that the Cz-75 grips fits my hand more naturally and comfortably -- just sort of locks in there to a degree that few other guns come close to. My S&W 625 (with factory-supplied Hogue grip with finger grooves) is about as comfortable, and I am not complaining about the perfectly fine grips on any of my other guns, but the stock grip on the Cz-75 makes it a very nice shooter, and (at least in my case) I think contributes to making the recoil seem like it's even less than a 9mm, and to making the gun shoot better where I think I'm suggesting it shoot than most of my others.
(I also bought mine NIB at Gander Mountain for just under $400, tax inclusive. A shade over to account for the PA police-state check, but that's a technicality
)
YMMV -- try as many as you can!
timothy