#2 Randy Orton
One of the best things about Randy Orton going toe to toe with Edge has been The Viper's storytelling. He recently told Sportskeeda's own Riju Dasgupta how he wants to wrestle for another 10 years and if his work this year is anything to go by, he'll certainly be able to do so.
Now, Orton has been brilliant in his promos thus far and the Last Man Standing match at WrestleMania was a great watch too. However, he did lose at the Showcase of Immortals and let's not forget that he was the one who challenged Edge for a match at Backlash. He wouldn't want to be reduced to an "all talk, no bite" guy and this is why winning at Backlash is so important for him.
That result would also work wonders in terms of WWE programming because the company could build towards a trilogy with the conclusion coming at SummerSlam. The feud is simply too big to come to a close at Backlash and perhaps Vince and co. could even have a few fans in attendance – if public regulations allow so – for the conclusion of this epic rivalry.