#2 Roman Reigns could have become a heel megastar much earlier by ending The Undertaker's Streak
Right now, Roman Reigns is the best and most interesting Superstar in WWE. He feels completely rejuvenated, having turned heel upon his shocking return at SummerSlam. The current Universal Champion has thrived as a villain so far, but what if he adopted the role after defeating The Undertaker at WrestleMania 33.
The setting was perfect for Reigns to complete his heel turn in 2017, but WWE did not take the opportunity. He was the second man to beat Undertaker at 'Mania and had the Deadman's Streak remained intact beyond 2015, The Tribal Chief would have likely ended it himself.
His victory at WrestleMania 33 would have been much more impactful and his promo the next night, "This is my yard now", would have meant so much more. Roman Reigns would have been permanently made as a heel megastar had he been the one to end The Streak.
This is backed up by Kane and The Undertaker themselves, who feel that Reigns should have been the one to end The Streak. In terms of current stars who would have benefited greatly from it, he probably should have been the one.
However, there is one more Superstar who would have been a great choice to end Undertaker's Streak. Possibly the best one.