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1Coke vs Pepsi -
2McDonald´s vs Burger King -
3Apple vs Microsoft -
4Starbucks vs Dunkin Donuts -
5UPS vs Fedx -
6Nike vs Reebok -
7Boeing vs Airbus -
8Hasbro vs Mattel -
9 AT&T vs MCI -
10Atari Vs Sega then Nintendo came