#3 Roman Reigns
Roman Reigns and Shinsuke Nakamura have been at odds in the past couple of weeks, with a Twitter spat leading to an Intercontinental Championship match on last week's SmackDown. Of course, the ensuing match was interrupted by King Corbin, but WWE could very easily re-visit the Reigns and Nakamura story.
The two had a great match before it's abrupt ending and they could definitely do it again. Also, the Big Dog would make for an excellent IC Champion. In terms of importance and spotlight, putting the belt on him is a great idea. The last time Roman Reigns held the Intercontinental title saw him take on all comers at a time when Universal Champion, Brock Lesnar, was not around very often.
As we head into the winter months, he may pick up the role of a top full-time male champion again. With the strength of SmackDown's mid-card, a few months of weekly Roman Reigns IC Title open challenges would do wonders for the FOX show. He has certainly gained a lot of popularity in the past year or so, making this the perfect spot for him.
It makes the Intercontinental Championship feel special again and the man who would eventually defeat the Big Dog for the strap is instantly made into a huge star. While he should win the WWE Championship as well in the near future, utilizing a star of Reigns' stature in this manner is certainly better than putting him against Lesnar once again.