#1 Should not be - Seth Rollins
Seth Rollins has had one of the best reigns as the Intercontinental Champion, and The Architect is expected to be the champion until at least WM 35. A number of fans are speculating that John Cena will defeat Seth Rollins at WM to become a Grand Slam Champion by winning the IC title.
However, the WWE should give Rollins a better opponent than Cena since the two have shared the ring earlier, and the fans deserve a fresh match. They have battled on several pay-per-views, and a feud between Cena and Rollins makes no sense.
It would be better if Seth is allowed to defend his title against a top heel from RAW like Baron Corbin or Bobby Lashley. Or perhaps the WWE Creative could continue the Ambrose vs Rollins saga until WM 35 where the two brothers would finally settle the score.