4. The Undertaker
There's been just as much speculation about The Undertaker leading up to Wrestlemania 30 as there has Hulk Hogan. Despite being under WWE contract and being one of the most dedicated and loyal employees of the WWE since his original debut at Survivor Series 1991, The Undertaker is a year from his fiftieth birthday and there is a lot of speculation about the end of the infamous 21-0 streak. It's an incredible achievement, unquestionably just as equal a part of Wrestlemania as anything else that's occurred in the preceding three decades - but with The Undertaker having undergone knee, back and neck surgery in the last few years (and given the death of Paul Bearer in March) there is a genuine question mark as to whether he will even be fit enough to attend. Given his match with CM Punk at Wrestlemania 29 was an extremely late addition and given The Undertaker has featured on virtually no WWE Television since, it's never far from people's minds that this might be his last stand and his last Wrestlemania. Undertaker has faced virtually everyone in his time at the WWE and there are few wrestlers (barring perhaps Cena or Brock Lesnar) who he could face with any credibility at Wrestlemania 30. Hulk Hogan and Undertaker have faced each other before, but not as part of a Wrestlemania event, and the idea of bringing these two legends together (especially in something that doesn't involve a 'Street Fight' and one of the McMahon family) at Wrestlemania 30 is an extremely attractive proposition. Hogan and Taker will arguably be favourites apiece, and their match would have pundits dumbfounded, a lot of who would expect the respective wrestlers to face other opponents if anyone at all. A chance for Vince to give the fans one last, classic, one school match that is actually done with two superstars who can still hold their own.