Hmmmm...
...thanks guys!
I think I'll go with a set of eye-catching 16 inchers (is that a word?!)
The more I think about it, the more I realize that taller wheels are relative to wider footprints. That is, more rubber traction made for a high torque machine - good for an NSX but useless on a GSR.
Besides, drop the car and even a 15 inch profile will look good. And there you have it: good grip, light rotation, and lower center of gravity.