Which candidates are most likely to qualify? What are the requirements?
I think that with such an initially limited population, the first Martians will need to be multi-talented, quick-learning, extremophile-types. How these kinds of people will interact in close quarters will of course be the interesting part, and I look forward to meeting the other candidates, who I think must be among some of the most interesting people on Earth.
To me right now, any other life ambition pales in comparison to being one of the first life forms from Earth to call Mars home. I am prepared to give it all up for this adventure.