Which way do the calipers go?

I've often wondered if mounting the caliper in front of the spindle vs behind affects the design "dive" characteristics of the suspension under hard braking situations. I don't know the answer, just asking for other opinions.
The suspension will work the same.
Just for grins, I have wondered if moving the calipers to the rear could even affect the Fr/Rr center of gravity? Yeah, it is probably so small of a change it isn't worth mentioning.