Since you wear New Balance, I'm going to go out on a limb, that you have slightly wider feet. That is what NB are known for.
You might want to try Asics, too. The DS Trainer (with the exception of the 14 release) has been pretty solid.
Also, for Mizuno, take a look at the Elixer vs. the Inspire.
Be forwarned, the latest Elixer and Trainer models tend to run between 90-110 bucks.