#3 Keith Lee
Keith Lee's potential is absolutely limitless. Lee is the answer to the question, what if you had a guy the size of Mark Henry who could move like Kofi Kingston? Lee is a big boy who can move like a cruiserweight and that will always lead to show-stealing opportunities.
On top of his raw athleticism, Lee is also naturally charismatic. Look at his last encounter with Kassius Ohno for example. Ohno mouths off to the crowd and states that he's leaving, only to turn around and get laid out by a rolling elbow from Lee.
Lee takes to the mic and says "oh no". Lee goes on to say that this ambush could have been worse, he could've low-blowed Ohno just as he had done to Lee in the past. Lee goes on to say "don't let the door hit you in the ass on your way out of here", then goes on to revel with the Street Profits.
Lee came off as funny, entertaining, and, more importantly, himself. A superstar always sounds better when they come off as being themselves rather than playing a character or reading a script.
While Lee has not yet had a standout match in NXT his charisma has shown through, and he has a catchphrase that resonates with the audience. No matter what Lee is doing you can hear fans singing "oh bask in his glory", that connection will catapult Lee into the spotlight when the time comes.