I'm not sure I understand your question as to "which is the better handgun?" Better for what? The Taurus will probably make a better carry gun and shooter. It is made of stainless steel, and is not 60+ years old. Your Waffenampt proofed FN Hi-Power (if in good condition and properly marked) could be worth up to $3500 or more, and is therefore a better handgun from a collector's standpoint. It could probably still be called on for self-defense, however. Quality-wise, the Belgian-made, Browning-designed FN probably beats out the PT99. Don't let anyone talk down your Taurus, though. Their model 92 and 99 9mm's are made in a factory purchased by Taurus from Beretta in Sao Paulo Brazil in about 1980, along with the tooling, technical drawings, and work force necessary to produce several different pistol designs, including the 99, so it is essentially a Beretta pistol.