Flip a coin
I owned a CZ-75BD and sold it. I have shot the Beretta extensively and now own a Taurus PT-92 (which I personally prefer to the Beretta mainly due to the safety). Both guns are awesome, shoot straight, and are as reliable as the devil. The Beretta / PT-92 design fits my large hands a wee bit better and the all steel CZ seems to transmit more recoil back to the fingers. When I bought my CZ it was only $340 and if that was still the case it would be no contest. Now at more similar retail prices, I say go Beretta for a better combination of quality, feel, potential resale, and in general it just looks cooler. But as said before either one will make you very happy.