#2 Mojo Rawley
Given that Mojo Rawley won the Andre The Giant Memorial Battle Royal, it would seem like he had a great 2017. However, after he won the event at Wrestlemania, Mojo was treading water for the rest of the year. Because he recently turned heel on Zack Ryder, Mojo has a much fresher outlook for 2018.
In theory, Mojo is a good looking guy, passable in the ring, good when given a chance to speak, young, a former football player, WWE homegrown, and being good friends with Rob Gronkowski does not hurt as well.
He has the potential to have the total package, and it is just about putting the pieces together. While Mojo may not necessarily win the current tournament for the US Title, he definitely has a legitimate chance to win the strap at some point this year.