Pat - I had been going by the rating system for rust resistance in the Plant database. But now I see that those rust ratings may or may not be absolutely true. Although there is the possibility that my rust strain is different than what the hybridizer or university study was observing.
I will say that I am VERY impressed with the cultivars that are showing NO rust at all. Some of them have a rusty plant right next to them (even touching them!). My daylilies are planted very close to each other (18 inches or less), so the rust IS there to infect any and all plants! I will continue to take notes as time goes on. Some of my rust buckets may eventually be culled or sent elsewhere. But for now, it is most enlightening to see what looks great (foliage wise) and what looks pretty bad.
I hope others here will also post cultivars that seem to show strong rust resistance. I need a list of good to try cultivars and I know others on this forum may have the same idea in mind.