I'd get the Veyron.
I do understand all the "excitement of a supercar"-babble, of which the Zonda has heaps more than the Veyron. And being a petrolhead, that surely pushes a lot of my buttons as well. But when it comes to actually driving it, life stops being perfect. You gotta go out there, with loads of idiotic drivers around you, bad roads, bad weather conditions and whatnot. And it's then when I prefer a car that will not excite me as much, but actually get me to B instead of kill me. The Zonda is a great supercar for when you can choose to drive it now and then, but given you probably can't, I'll enjoy the comfort and the huge power, garnished with controllability, of the Veyron.