I'm able to only echo that. One particular might be "far better" than the other with regards to the criteria. Generally, the 9mm has my vote and I personal more 9mm handguns than .40S&W. My two PPCs are also 9mm (Sub2000 & CX4). That said, I do like the 40 S&W plenty and just bought a Beretta APX that I really like.Though every little thing else Re