#1. May win the Royal Rumble again: Roman Reigns
Roman Reigns' Royal Rumble win in 2015 is undoubtedly the most controversial one in the past decade (along with Batista's the previous year).
The entire irony was that a year before Roman Reigns won the Royal Rumble, he was the final contestant in the match before getting eliminated by Batista. Reigns was cheered because nobody wanted The Animal to win.
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A year later, Roman Reigns found himself in Batista's spot. It was clear that WWE wanted to push him as the next face of the company, and fans felt that he wasn't ready for that spot. Wanting to see Daniel Bryan finally get a Royal Rumble win, fans were bitterly disappointed for the second year in a row.
The reality is that Roman Reigns wasn't ready to win the Royal Rumble in 2015, but WWE went ahead with it against the fans' wishes. Roman Reigns has entered a new phase of his career, and he seems to be a candidate on this list with the highest chance of winning another Royal Rumble match in the future.