My dream rose would be a much smaller re-blooming Konigin von Danemark or R. Primula. I wish breeders would breed not only for disease resistance, but for beautiful foliage. Maybe these roses do exist and I just haven't heard of them yet.
This is my Konigin von Danemark yesterday. Her blue/gray/green foliage is even bluer than my blue hostas. I've included a picture of a young 'Blue Angel' hosta so you can see the contrast.
Konigin von Danemark yesterday:
'Blue Angel' hosta: