My best disease free mini rose is Gizmo. I have had it about 6 years in a pot. It is continually covered in red blooms.

Mine is Spring Fling, a sport of Gizmo. It's leaves are made of iron, and all it does is bloom. I've had it for three years now and never seen a speck of disease on it.

My nomination unfortunately has no name and is growing next door to me. It has been growing for over 5 years in partial to mostly shade, gets one amazing spring bloom and then sporadically, with no care at all. It has grown to almost three feet, small leaves and thin canes, small blooms white edged in reddish pink, no disease. Simply amazing.