3. Seth Rollins Vs. Dean Ambrose Vs. Roman Reigns: WWE World Heavyweight Championship
We've seen every combination of matches between these three - and saw them involved in a fatal four way - but we're still waiting for that elusive triple threat showdown between The Shield. While the match is inevitable, it seems likely that it's the main event we would have gotten at WrestleMania 32 if Rollins hadn't succumbed to injury. There certainly couldn't have been a better stage for the long-awaited bout and that's especially true if Seth Rollins would have been allowed to continue his impressive title reign all the way to 'Mania 32. These three friends/foes battling it out over the company's biggest prize would have not only been a compelling match in its own right but it would also have been one of the first WrestleMania main events in some time that didn't rely on the presence of a part-time veteran WWE star. Oh, what could have been.