That's a tough choice.
If enough people bug Jay to get a p07 or px4 as rentals we might be able to help you out.
I've shot both, like both. They're both a little rough out of the box but smooth out nicely with just a case or two through them.
I might stay with Beretta only because of the decocker location. It's right where I'm used to them being. The CZ levers are never in the right spot for me.