#4 SmackDown 2012
Upon his return in late 2012, Barrett had an entirely new look and was portraying a much edgier character. The fans were starting to get behind him more and more and understandably so, because he was knocking every single segment he was in, out of the park.
He was rewarded for his hard work with a series of non-title matches against World Heavyweight Champion Sheamus, which included a Lumberjack match.
Simply put - that match should've been for the championship and Barrett should've won it. Sheamus wasn't really doing anything too interesting with the belt as a babyface champion, and Barrett had once again proven that he could reinvent himself at a moment's notice.
It all fell into place nicely and WWE should've had the grapefruits to pull the trigger.
We conclude with the most recent and probably least likely of the options.