Mine is also Deserted-Island Relocator. I've had the game since launch but never changed it so far since I don't really have one in mind to replace it. Never really gave it much thought.
Whaaa! I thought we all started with the same generic one! Mine was kinda boring that i forgot what it even was. I changed it right away to get miles for my moving fees.
I believe if you're the head honcho of the island, your title will always be Deserted-Island Relocator. That's what it was for me. My brother had a different title which I don't remember what it was. My new one is Crafty Lad.