the S04's are overall better tires than the DW's for sure. but the DW's are much cheaper and lighter weight so if those are attributes on top of comfy quiet ride (and great wet traction), something to think about. im happy with the DW's i have right now on my Z but this will be the last set for conti's for me. i just wanted to try them out.
next up for my Z are supersports. ive been a fan of Pilot Sports so im sure the SuperSports will meet or exceed my expectations.