There are a ton of great 9MM pistols out there and you mention some terrific ones. Be sure to check out the Walther PPQ also with its remarkable trigger and ergos.
I don't own a Beretta 92 - yet. But it is hard walking away from them now that my LGS has them for $499 after $50 off rebate. Though they may not have any left now
As always it is best to try some out and find what works best for you.
I have tried just about every commonly available 9MM pistol out there and for me SIGs and Walther work the best for me.