I think my preferences for the perfect listening seating would be differently influences by comfort, context of use and aesthetics.
In terms of aesthetics, I find the Eames Lounge Chair and the Padded Chair amazing. My boss has the padded chair in his office, I tried it and it's also very very comfortable. I would honestly not be concerned by loooooong term comfort, as I could not stay sitting for that long anyway. Also, unless I'm doing some distracted listening, I mostly play vinyls and, accordingly, I cannot stay sitting continously
I looked to the Ekornes catalog, after reading on this forum about this brand for the first time. They may be the top for comfort, but not my piece of cake in terms of look. I found the Streesless Jazz the only one that had that lifestyle flavor that I like in modern furniture (rigorously IMHO).
Not to be critical to some members here (whose I envy a lot the overall look and content of the listening rooms) but I don't like the main chair in from of other seatings: too much "theater" to me.