Josh the front chin spoiler is different between the RUF and Porsche OEM... Sounded like you were comparing the two when they are not the same thing.
I think the cleanest rear end has to be the SKN SC/Carrera
Rear bumper. Very nice. I do not care for the RUF cheese grater look. Then again if you are going for the RUF look you have to go with the RUF rear.
I think the RUF front spoiler is the cleanest and most functional out there (with oil cooler of course). Definately on my future projects list