#1 Batista

Former World Heavyweight Champion, Batista, has made it pretty clear that he would love to work with the WWE again, and providing they can find the right opponent for him, then there may be no better opportunity than WrestleMania 35.
Batista's ill-fated run at the start of 2014 has left a sour taste in the mouths of some fans but the former Evolution star has gone on to become one of the hottest movie stars on the planet since then.
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The success of the MCU has launched Batista into the stratosphere, and he would no doubt be a massive draw to casual fans the world over if he were to make his return to the company in April.
The fact that the much anticipated Avengers: Infinity War sequel is scheduled for a release a little over a month later certainly isn't going to do him any harm either.