#3 The Miz
The Miz and Daniel Bryan never really finished their long standing rivalry. These two individuals have history going back eight years, and such a long rivalry is not done and dusted with a two minute match-up at a glorified house show.
With Bryan turning heel last month, and Miz showing signs of a potential babyface turn, a role reversal leading to a championship feud is very likely between the two superstars. Miz and Bryan competing for the WWE Championship is only deserving, considering the kind of feud they have had in the past few years.
The mentor (Miz) facing off against his protege (Bryan) will make a story for ages, and will help WWE up the ratings. Good stories between fleshed out characters is what the fans are desperately asking for, and WWE must oblige and give the fans what they want.