#5 Bo Dallas
I hate to keep harping on how certain WWE Superstars did extremely well in NXT, only to fall flat on their faces on the main roster, but it's simply hard to deny the evidence that is right under our noses.
Bo Dallas is definitely one of those Superstars who excelled in the developmental process but has yet to see any sort of hope as a main roster star.
When Dallas arrived on the main roster, I was very hopeful for the third-generation star. After all, they brought him up with the same "Bo-Lieve" gimmick which had garnered him so much success during his time with NXT.
In fact, I'll boldly go a step further and say this- Bo Dallas is the most entertaining NXT Champion in the brands' young history.
By no means am I suggesting that he was the most athletic or even the most physically impressive, but he added an extra element of raw entertainment which helped propel NXT into the position it's currently in.
Since he's been on the main roster, he has been forced to live in the shadows of big brother Bray and that's too bad, especially considering they both have polar opposite styles and both have something special to offer the business.
There have been brief moments of hope, but those hopes have been quickly and abruptly railroaded for the sake of some sort of comical angle. Bo Dallas is much more than just a side-show attraction.
Bo has all of the tools needed to be very successful, at the highest level. I have faith that someday, someone with some clout will realize the resources that are being squandered by limiting Bo Dallas, creatively.