#2 Samoa Joe (United States Champion)
Joe has incredible in ring and mic skills and can create amazing matches but he has been misused by WWE on every stage. He has not been booked as a monster that he is and WWE is doing a huge mistake by doing that. WWE needs to build Joe back and WrestleMania could be the launching pad for Joe's monstrous run to the top.
Samoa Joe is scheduled to defend his US Championship against Rey Mysterio at WrestleMania. Though Rey is hugely over with the fans, Samoa Joe has more chances to win this one.
Rey's son Dominic will be at ringside during Rey's match, WWE could use this opportunity by making Joe look like a monster by decimating Rey Mysterio in front of his son. This move will make Joe the most hated heel on the roster.
After successfully retaining his US Championship at WrestleMania, Joe could move to Raw as the Intercontinental Championship will be on SmackDown Live and generally the mid-card championships are not on the same brand.
Raw will serve as a new platform for Joe and he could create some exciting rivalries with superstars like Elias and EC3.