I have seen a few lists, but they are usually just repeats of each other. Here's 2 that I know of
Daylily Rust Survey
http://www.daylilyrust.org/sur...
And
http://aggie-horticulture.tamu...
I'm not sure how recent the first has been updated. The problem with there being a list of less or more resistant is it takes certain conditions for rust to show it's ugly head and those climate conditions can change from year to year in areas. Just like I've read people say that when there is more tropical storm/hurricane activity they see more rust in their gardens down south or in areas that get the winds and such. John Peat even commented that when he came back to South Florida after so many months away he figured he'd have a really bad outbreak of rust, but he had none to his amazement.
I used to have some of the daylilies that, on any list I've seen, is highly susceptible to rust and here in the rust belt of the world never showed one sign of rust and that was without spraying them.
Here it's kind of hard to know what is and what isn't less or more resistant in my gardens because we HAVE to spray for rust and keep it out of our gardens in order to sell daylilies.
2 years ago when I first got into daylilies and got rust everything I read said that rust couldn't survive or show up when temps get above a certain degrees. Well, I beg to differ on that because my rust showed up when it was 99 and above degrees.
People who overhead water versus soaker hoses generally see more rust from what I've read.
There is a person here who said they had no rust last year (they did not spray) but 5 miles down the road at the place that these daylilies came from had rust when not spraying.
I guess my point is it's really hard to say who should go on the list or not because of so many variables and that's probably why there is no extensive list available.