Dream team casting:
M/F
*Brother & sister duo (20s) with one teammate who has accomplished a lot and the other accomplishes at nitpicking life's adversities
*Couple consisting of a palm reader/psychic and a "mortal" (20s)
*Couple of childhood lovebirds (20s) who are always good communicators and know many languages, though weaker in physical tasks
*Couple of determined plus-size models (20-30)
*Couple of motorcycle rebels (30-40) who are not afraid to get a little contentious if they don't get their way, but have their soft spots
*Latin-American friends (30s) who take utmost pride in family, heritage, travel, and food; competitive edge through the roof
M/M
*Best friends (30-50) who both work in dangerous and high-pressure jobs and are very detail-oriented
*Uncle & nephew (60s & 30s) duo who are wise, charming to people, and funny guys in general; perhaps a C or D-list celeb?
F/F
*Alpha/tiger moms (40-60) who take criticism to heart and vie to be the best
*Lingerie football teammates (20s) who are fierce competitive divas on and off the field
*Sorority sisters (20s) from an East Coast university who will do what it takes to win