Caliper position effect on braking or suspension?
So long as the caliper attachment point is rigidly connected to the axle, precisely where along the circumference of the rotor (or wheel, for rim brakes) the caliper sits is of no consequence (other than to the designer, who must consider stresses on the "rigid" components).  Braking force and forces applied to suspension components do not change based on the location of the caliper.

Note that position will, to a significant degree, affect such factors as the torque put on the "tine" of the front fork, which may in turn result in such things as a slight twist in the caliper position while braking, but these effects can only occur to the extent that the "rigid" components aren't, quite.