Cast dreamlist (
my personal rookie award):
M/F teams:
Dating couple / Late 20s, Both cute & fit,
both with a different disorder (perhaps dyslexia and color-blindness), wants to prove people with certain disabilities are able to do anything than what really is portrayed in the ignorant mediaDating long-distance / 30 and 35-ish, not so fit,
dating close for a few years, then one's work headquarters move to the different side of the U.S. causing a long distance relationship to form. Wants to have this literally close moment together before returning back to their distanced lives.Dating couple / Early 20s and late 20s, both fit, male has nice abs, female has orangish hair dye, will bicker,
met as aspiring musicians at a concert in the major city and began to play in a local pop rock band with other friends in their little town. Thinks entertainment will get them far in the race.Married "rednecks" 
/ Appearance-wise: Steve & Linda-ish... both down-to-earth lovebirds, well-educated, and
lots of FUN, FUN, FUN! 
They want to also break the redneck stereotype placed on reality TV (notably the "You betta redneckognize" toddler & mom, and Duck Dynasty beardies)Cousins / fit, male has noticeable abs, female is sometimes grouchy to others while male is chill and laid-back.
They are like brother & sister, no rivalry against each other, but can be manipulative. Female has good reps on booking good and hidden flights because of her frequent flyer discounts on her favorite airline (Mirna much?) 
while male handles physical tasks and stress very well.Stepmom & stepson / Fit, super-super fans, middle-aged & young adult, both love each other LIKE a real family, but do butt heads once in a while when each wants to complete a challenge their own way.
Stepson's dad passed away from a car crash when he was a child and mother was put in prison after severe cocaine addiction when he was a high school student. Racing to showcase their "lifestyle" and how they can connect well to each other.
M/M teams:
Boyfriends / surfers / Early 20s, both have abs, plays many sports, prepared (I wonder what the twinnies will think
),
have fallen in love when they were in college, Just so goddamn ADVENTUROUS & FUNNY GUYS!!! 
Single dads / Mid-40s, superfans of show, both have been friends since meeting in a sales rep. workplace environment.
Wives divorced them and left their children to the males, coincidences do happen.
Retired NFL or NBL players / friends / Played for different major league teams, nearly obvious for fitness, competitive drives, and agility, but
wants to win to help out special needs kids and start an anti-bullying program for their small hometowns. So yeah, somewhat like the Globetrotters.
F/F teams:
Grandmothers /
Pre-faves, more competitive than Peggy & Claire, one is of British descent while other is African-American, talented in elderly lacrosse, chess, and musical instruments,
wants to show viewers oldies can make it far in the race, if they win they want to help their grandchildren's education tuition
Former college roommates / best friends / One is a Hooters (former diner) waitress and has a PhD in social science, one is a college football cheerleader and also studying sports science,
they want to show they have the brains, not the looks to get them far in the race. --------------------------------------------------------
And here is my grueling and dreadful routing as some of you will obviously call it:
STARTING LINE: Philadelphia, Pennsylvania (Germantown - Cricket Club)
Leg 1 (United States --> Germany) / Philadelphia to Cologne (Dusseldorf as Pit Stop location)
Leg 2 (Germany --> Finland) / to Helsinki
Leg 3 (Finland) / train to Tampere and Ylöjärvi (SWITCHBACK to season 10 muddy Detour)
Leg 4 (Finland --> Estonia --> Belarus) / train back to Helsinki, ferry to Tallinn, quick, bt exhausting Detour and Roadblock, double-length leg, fly to Minsk and drive to countryside farms for farming equipment themed tasks
Leg 5 (Belarus --> United Arab Emirates) / to Abu Dhabi
Leg 6 (United Arab Emirates) / drive to Dubai (featuring Al Apole Rab deserted island, Heritage Shindagha Village, and Deira Fish Market community as filleting/eating Roadblock and Pit Stop)
Leg 7 (United Arab Emirates --> Zimbabwe) / fly to Bulawayo in "Southern Rhodesia", wildlife and animal knowledge & products themed tasks
Leg 8 (Zimbabwe --> Brazil) / fly to Saõ Paulo, take bus to Foz do Iguaçu (national park tasks aside from the Roadblock in season 2)
Leg 9 (Brazil --> Peru) / to Lima (couple of tasks) and bus to Cuzco
Leg 10 (Peru) / drive to Juliaca and Puno (Pit Stop at Lake Titicaca lookout)
Leg 11 (Peru --> Bolivia) / row across the lake (while completing tasks) to Copacabana Munic., Bolivia and drive to La Paz (Pit Stop city)
Leg 12 (Bolivia --> United States) / to END CITY: Miami OR Fort Lauderdale (airport choices)
FINISH LINE: Big Cypress National Preserve
I think it might be a little better backwards, but nobody's perfect (and I'm not re-cutting and pasting all those leg descriptions on an iPhone...)
