Candidate number two:
Anastasia 'Dee' Dualla
She alone will have survived Earth's terrible apocalypse (and if it's the past; Oprah is a 2,000 year old oracle) and will be the one to surprise the fleet. "You're all getting BRAND NEW CAAAA-AAAARS! Welcome to Earth!"
Tune in next week for Who is the final Cylon part II!