#1 The Rock
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Back in 2004, Mick Foley was feuding with Evolution on the road to WrestleMania 20. He brought in The Rock to even the odds and it led to a 3-on-2 Handicap match at The Show of Shows. This was an incredibly rare occasion where The Rock and Randy Orton exchanged blows in a match. In a few months, The Rock left WWE for good, to focus on his Hollywood career. The Rock came back in 2011 and had a program with The Miz and John Cena heading into WrestleMania 27.
Soon after, Randy Orton revealed that he had heat with The Great One before WrestleMania. It stemmed from an interview where Orton stated that he didn't believe when The Rock said that he won't leave WWE ever again. Orton further stated that The Rock had called WWE and complained that The Viper was burying him. Orton was then told by John Laurinaitis that Vince McMahon wasn't happy with Orton's comments. Last year, Randy Orton challenged The Rock to a match at WrestleMania, but the Brahma Bull jokingly shrugged it off.