For womenswear, I can't really say. But, for menswear, there are a few:
Bernhard Wilhelm- I just don't see the appeal. The clothes are garish, expensive, and make the wearer look like somebody out of a bad 80's rap video.
Andrew Mackenzie- Aside from a single cotton blazer that I liked a few seasons ago, his speedo-fit jean shorts and halter tops for men look like tacky gay p*rn.
Post 2004 Dior Homme- Okay, Hedi, you like the independent music scene and skinny models. Get over it and move on. The androgynous aesthetic that was amazing and fresh in 2001 is now five years old. Your original clientele of upscale youngish guys who loved exquisite tailoring has moved on and has been replaced by snotty teenagers in search of the next hot thing.
Jeremy Scott- See reason for Wilhelm above. Scott is about as bad... only not German.
John