Arillaga is a much more beefy big plant then the other two. I guess you might describe the blooms are being coarser. This doesn't bother me but it does some people.I'm sure you know that Paul's is the sport of Heinrich. All of these roses are disease prone. I had to reluctantly take out my Paul's. It got rust here terribly.

Yeah, I know Paul's is a sport, so should be very similar to Heinrich apart of color. Coarse blooms do not bother me either, size however I have to think about, since smaller roses = more roses.

Disease wise, did they all 3 got rust mostly, or everything else as well? Rust is not a common problem here, but mildew and sometimes blackspot can run rampant.