Mariu posted:TIE defender. Rotational symmetry = good for space dogfights. EDIT: I'll make a lone defense of the exposed bridge of an ISD on aesthetic grounds (which should never be absent from any design considerations!): somehow I just cannot imagine a Chiss SD gliding to the tune of the Imperial March. The bridge adorns the ISD like the crest perches on a Roman helmet...it bespeaks a certain measure of valor and pride that scorns danger.