Wait, you have a home with a desk on your desert island. All I have is a palapa and a hammock
I have an issue creating a desert island setup, I probably want to run the whole thing out of a DAP -- specifically, my Cowon Plenue 2. But it doesn't really drive my Auteur perfectly. So that makes me lean towards Utopia, even though Auteur is my 'Goldilocks' headphone. Auteur also loses desert island points for being a bit heavy, and especially a bit warm for use in the tropics (where my island is located).
But if you put me on a desert island (say) off the Alaska panhandle and with room for a full-sized rig, then it's Auteur all day.