5. Seth Rollins
WWE.comSeth Rollins destroyed The Shield from the inside out. And if he had done it for any other reason than because he wanted to side with Triple H, it perhaps would not have mattered that much to Roman and Dean Ambrose. But when Seth turned and essentially sold his soul to The Authority, he made an enemy for life out of both Dean and Roman. Triple H may have been The Shield's ally in the beginning but he eventually became their greatest enemy. He represented everything that The Shield stood against and it became evident with Rollins' actions that the war was just inevitable from the start. And sooner or later, Seth must answer for what he did. Ambrose may be the one to lock horns with Rollins first and Dean should win that match. But at some point, Seth will come face to face with Roman Reigns. And when that happens, Reigns must take him down for what he did. Seth must pay the price and Roman is the one to make that happen. Truth be told, Rollins versus Reigns could be a preview of what's to come in the future. If Roman keeps climbing the ladder in WWE and wins the championship, then Seth could be one of the first men to challenge him. And despite where Rollins is when that happens, an all Shield main event championship match would be easily marketed to the WWE faithful. But it has to start somewhere. Once Seth catches his breath from Dean, Roman will be waiting on him.