SWITCH 2 NIGHTWING BRO
seriously though you should because Nightwing is a water-tight solid character from top to bottom which is what I know you want and what your suggestions would turn batman into. Not that he should or shouldn't be, but he wasn't designed that way.
Some characters are designed to rushdown/mix up, others to zone, grapple, control space, or do all of the above etc.
meanwhile batman is a trait-fuck character, same as sinestro