If there were an all-stars for any international version, who would you pick?
I've come up with two lists here.
First is 
The Amazing Race: International All-Stars-

 Mardy & Marsio (Asia 1) - 4th Place
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 Sticky & Sam (Australia 2) - 7th Place
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 Jody & Cory (Canada 1) - 2nd Place
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 Sun Bin & Hao Fei'er (China Rush 2) - 3rd Place
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 Hadj & Yacim (France 1) - 2nd Place
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 Akiva & Anaelle (Israel 2) - 3rd Place
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 Darío & Esther (Latin America 5) - 2nd Place
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 Frank & Ivar (Norge 1) - 4th Place
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 Saida & Jervi (Philippines 1) - 5th Place
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 Alexey & Olena (Ukraine 1) - 2nd Place
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 Hari & Tiến Đạt (Vietnam 2) - 4th Place
And then second is 
The Amazing Race: Unfinished Business International-

 Marc & Rovilson (Asia 2) - 3rd Place - Won 8 legs of the race but faltered at the final Roadblock, involving countries' flags.
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 Richard & Joey (Australia 1) - 9th Place - Shaved their heads for a Fast Forward, but were immediately U-Turned out of the race on the following leg.
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 Hal & Joanne (Canada 1) - 6th Place - Strong racers, hit with a surprise Double U-Turn and eliminated.
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 Xiao Bing & Xiao Bang (China Rush 3) - 8th Place, Front-runners, eliminated when given a 30-minute penalty for merely placing their bags in the wrong spot.
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 Heïdi & Michel (France 1) - 4th Place - Surefire Final-3 material, eliminated by a U-Turn.
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 Ma'ayan & Bat-El (Israel 3) - 3rd Place - Finished the race's final task in first place, but got lost on the way to the Finish Line.
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 Toño & Lili (Latin America 2) - 2nd Place - Lost a footrace to the Finish Line in the closest Amazing Race finish in history.
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 Karim & Khabat (Norge 1) - 2nd Place - Set to win the race, but faltered at the final challenge.
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 Fausto & Dayal (Philippines 1) - 2nd Place - Shaved their heads for a Fast Forward, which was a huge loss for Dayal, but ultimately finished in second.
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 Ihor & Vasil (Ukraine 1) - 5th Place -  Very strong racers, eliminated after a horrible day in Amsterdam.
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 Linh Chi & Nhan Phúc Vinh (Vietnam 2) - 2nd Place - Arrived at the finish line in 1st, but were served a 30-minute penalty for traffic infractions performed by their taxi driver.