#1 Samoa Joe
A lot can be said about Samoa Joe. But the important thing to remember is, Joe is believably a very, very scary man.
Very few wrestlers of his size possess the kind of agility that Joe displays in the ring, and his freakish power lets him come off as a legitimate threat. Joe is a very intense person in the ring and also on the microphone.
His unique in-ring style of Samoan wrestling combined with stiff MMA-style maneuvers and very effective submissions make him a very believable champion.
Joe showed off his prowess in a promo during his feud with Brock Lesnar. Joe cut some of the best promos of the year during this feud, sharing intense words with Paul Heyman and Brock Lesnar. He was so good he made us all believe there is a legitimate chance he might take down 'The Beast' for the Universal Title.
Joe also has a lot of respect from the locker room, owing to his technical prowess and time spent in the independent circuit. The likes of Paul Heyman have been reported to be rooting for him backstage. All this makes Joe a perfect candidate for the main event scene.
A return for Joe is bound to happen sometime after WrestleMania, and what better way than to let the two Samoans battle out over the supreme title of Monday Night RAW.