I have not seen either of these cultivars in person and would like to choose one for my garden. Alas, I just don't have space for two white rose-form doubles!
I like that Elsa Sass is late as I have more early and mid-season bloomers than late. A lot of people seem to favor White Frost though...
I like that they are both fragrant. They both sound like they are floriferous and have good foliage.
What are your thoughts? Which do you think makes a more beautiful plant in the landscape? What aspect would make you choose one over the other?
Looking forward to hearing from you!
