I think my Agave perryi 'Super Hardy' have lived up to their name!
The big one looks absolutely undamaged -- no mushyness or anything:
The small one (a pup from the big one) isn't quite as happy, with a few mushy leaves, but the damage seems to be just on the outer portions of a couple leaves -- no signs that the center of the plant is rotting out.
Arrowhead Alpines but they don't list it in their catalog for this year. Luckily it seems to make pups pretty freely, so hopefully I'll be able to have lots of them soon. And you never know -- we you visit Arrowhead in person, they often have plants that didn't make it to the main catalog. If I can, I'm getting more.