#1 Drew McIntyre

Drew McIntyre is set to have a rocket strapped to his back and be pushed to the moon. He is the top heel on Raw because Lesnar is never around, and is likely to have a high profile match at Wrestlemania.
The best way to set up the monster push he is about to receive will be an amazing performance in the Royal Rumble match. If you ask me, his Mania match should be against Kurt Angle, and if WWE does it right their match can be set up in the Rumble match.
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McIntyre has loads of experience and is a great worker in the ring as well. He can pull off an iron man performance with ease and it will be very believable as well.
The only problem will be the fact that he is a heel, although in today's WWE that won't hinder the match in any way.
McIntyre can have a dominating run before being eliminated by a fresh babyface and the two can start a personal rivalry culminating at Wrestlemania. WWE has gold on their hands with McIntyre and a strong Rumble showing is just what he needs.
McIntyre is the second favorite to win the Rumble match after Rollins. But this can only be possible if and only if Balor wins the title as a heel vs heel match at Wrestlemania is impossible.
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