In my humble opinion, the RWLs would fit the look of your car much better. The WSWs are definitely a much more formal look. ie, they look right on that tan with brown top Challenger in your pic, but not so much on the sportier scheme your car has. Ya know?
RWL Polyglass tires were original equipment on 73 Challenger Rallyes (I've got a perfect one in my trunk to prove it :-) so it's not as if they would not be "correct."
Just my 1.7 Yen.