#4 John Cena
John Cena is now officially a part-timer, making his appearances for WWE few and far between. He does not have much time left and he still needs to win that record-breaking 17th world title. Cena is currently off filming another movie but should return to WWE programming in the lead-up to WrestleMania. He could literally show up on SmackDown twice and the feud would still be one of the best things on the show. Cena hasn't faced Daniel Bryan ever since that classic at SummerSlam when Bryan won his first WWE Championship.
It would be an enticing rematch, to say the least, and there is somewhat of a built-in story, with Cena's break-up with Nikki Bella. He and Bryan were so close to becoming brothers-in-law, but it didn't happen. This match would be one killer promo from Bryan away from becoming the second or third biggest match on the entire WrestleMania card. It would just be two world-class masters of wrestling and sports entertainment, working together to create a 'Mania classic. Along with his current position, the rub Daniel Bryan would get from beating John Cena again would be enormous.